Chapter 18 Review “Reaction Rates and Equilibrium:18章回顾”和平衡反应率 19页PPT文档

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高一英语下学期unit18-New-Zealand

高一英语下学期unit18-New-Zealand
才开始,我挺纳闷,这鸦吃了鱼不朝肚里咽,屯在脖子里,等着朝外倒,真是“傻鸦”。后来才明白,鸦在下水前,脖子被绳子扎了,吃的鱼只能到那个份上。而且,鸦在捕鱼前,主人是不喂食的。 这样,有饥饿感的鸦,才更有捕鱼的主动性和迫切性。也有看破玄机的“精鸦”,离船远远的,在水面上悠荡,磨洋工,东张张,西望望,就是不朝水里扎。这时,鸦主人会赶过来,用桨猛击水面,击 出的水泼向偷懒的鸦,嘴里还不停地骂着。“精鸦”只好极不情愿地朝水下扎。每次撵鸦捕鱼时,船上的人都一直不停地吆喝,脚下的的木扳子也一刻不停地敲着船舱板。我估计是为了调动鸦的兴奋点, 像鼓励在战场上冲锋陷阵的士兵,像运动场上为运动员鼓劲的啦啦队。足球论坛
当然,还有一种比“游击队”更小单位的,属真正意义上的游兵散勇了。它是一根竹杆担在肩上的,四只鸦。挑着走时,鸦在竹杆上像跳舞,都大敞着双翅,配合着主人的步伐。不过这已不是鸦船 的范畴了,只顺提一下罢了。
每次鸦船来,我们都要跟着跑几里地,遇到港汊挡了路都以船为家,是“正规軍”。“正规军”都是外地人。而另外,还有一种小鸦船,属“游击队”。它小到仅能容一个人,船两沿各有两根挑出的桩, 只有几只鸦。它只是在田间大中沟里,小排河里营生。只能说叫小打小闹,完全没有“正规军”捕鱼时那气派,那声势。

新SAT官方指南阅读第十八篇全解析

新SAT官方指南阅读第十八篇全解析

新SAT官方指南阅读第十八篇全解析This passage is adapted from Emily Anthes,Frankenstein's Cat.©2013by Emily Anthes.When scientists first learned how to edit the genomes of animals,they began to imagine all the ways they could use this new power.Creating brightly colored novelty pets was not a highpriority.Instead,most researchers envisioned far more consequential applications,hoping tocreate genetically engineered animals that saved human lives.One enterprise is now delivering on 5this dream.Welcome to the world of“pharming,”in which simple genetic tweaks turn animals into living pharmaceutical factories.Many of the proteins that our cells crank out naturally make for good medicine.Our bodies’own enzymes,hormones,clotting factors,and antibodies are commonly used to treat cancer,diabetes,autoimmune diseases,and more.The trouble is that it’s difficult and expensive to make 10these compounds on an industrial scale,and as a result,patients can face shortages of themedicines they need.Dairy animals,on the other hand,are expert protein producers,their udders swollen with milk.So the creation of the first transgenic animals—first mice,then otherspecies—in the1980s gave scientists an idea:What if they put the gene for a human antibody or enzyme into a cow,goat,or sheep?If they put the gene in just the right place,under the control of the right molecular switch,maybe they could engineer animals that produced healing human15proteins in their milk.Then doctors could collect medicine by the bucketful.Throughout the1980s and’90s,studies provided proof of principle,as scientists created transgenic mice,sheep,goats,pigs,cattle,and rabbits that did in fact make therapeutic compounds in their milk.At first,this work was merely gee-whiz,scientific geekery,lab-bound thought20experiments come true.That all changed with ATryn,a drug produced by the Massachusetts firm GTC Biotherapeutics.ATryn is antithrombin,an anticoagulant that can be used to preventlife-threatening blood clots.The compound,made by our liver cells,plays a key role in keeping our bodies clot-free.It acts as a molecular bouncer,sidling up to clot-forming compounds andescorting them out of the bloodstream.But as many as1in2,000Americans are born with a25genetic mutation that prevents them from making antithrombin.These patients are prone to clots, especially in their legs and lungs,and they are at elevated risk of suffering from fatalcomplications during surgery and childbirth.Supplemental antithrombin can reduce this risk,and GTC decided to try to manufacture the compound using genetically engineered goats.To create its special herd of goats,GTC used microinjection,the same technique that30produced GloFish and AquAdvantage salmon.The company’s scientists took the gene for human antithrombin and injected it directly into fertilized goat eggs.Then they implanted the eggs in the wombs of female goats.When the kids were born,some of them proved to be transgenic,thehuman gene nestled safely in their cells.The researchers paired the antithrombin gene with apromoter(which is a sequence of DNA that controls gene activity)that is normally active in the 35goat’s mammary glands during milk production.When the transgenic females lactated,thepromoter turned the transgene on and the goats’udders filled with milk containing antithrombin.All that was left to do was to collect the milk,and extract and purify the protein.Et voilà—human medicine!And,for GTC,liquid gold.ATryn hit the market in2006,becoming the world’s firsttransgenic animal drug.Over the course of a year,the“milking parlors”on GTC’s300-acre farm 40in Massachusetts can collect more than a kilogram of medicine from a single animal.22、The primary purpose of the passage is toA)present the background of a medical breakthrough.B)evaluate the research that led to a scientific discovery.C)summarize the findings of a long-term research project.D)explain the development of a branch of scientific study.正确答案:A分析:文章的重点是介绍基因工程发展的背景(注:pharming在这里应理解成基因工程或基因改造)。

写 斑羚飞渡 读后感中的观点

写 斑羚飞渡 读后感中的观点

写斑羚飞渡读后感中的观点英文版In the novel "Bambi" by Felix Salten, the protagonist, a young deer named Bambi, goes through various trials and tribulations as he navigates the challenges of the forest. One of the most striking scenes in the book is when Bambi witnesses the migration of the antelopes across the river, a moment that symbolizes the fleeting nature of life and the importance of resilience in the face of adversity.The antelopes' journey across the river serves as a powerful metaphor for the trials and tribulations that we all face in life. Just like the antelopes, we are constantly faced with obstacles that threaten to overwhelm us. However, by banding together and supporting each other, we can overcome even the most daunting challenges.The scene also highlights the importance of adaptability and resilience in the face of adversity. The antelopes' ability to navigate the treacherous waters of the river demonstrates the importance of being able to adapt to changing circumstances and overcome obstacles with grace and determination.Overall, the migration of the antelopes in "Bambi" serves as a poignant reminder of the fleeting nature of life and the importance of resilience in the face of adversity. By banding together and supporting each other, we can overcome even the most daunting challenges and emerge stronger and more resilient than ever before.中文翻译在费利克斯·萨尔滕的小说《小鹿斑比》中,主人公小鹿斑比在穿越森林的挑战中经历了各种考验和困难。

青霉素过敏的英文作文初三

青霉素过敏的英文作文初三

青霉素过敏的英文作文初三1. Allergic reactions can be a real pain, especially when it comes to something as common as penicillin. It's like your body decides to have a serious freak-out session whenever it encounters this particular antibiotic. You might start itching like crazy, breaking out in hives, or even have difficulty breathing. It's like your immune system is going haywire, and there's not much you can do about it.2. It's not just the physical symptoms that make penicillin allergies such a hassle. It's also the fact that you have to constantly be on guard, making sure you don't accidentally ingest or come into contact with anything that contains this drug. It's like living in a constant state of fear, always worried that you might have a reaction and end up in the emergency room. It's a real buzzkill, to say the least.3. Dealing with a penicillin allergy also means thatyou have to be extra cautious when it comes to other medications. You never know if they might contain traces of penicillin or have similar ingredients that could trigger a reaction. It's like playing a game of Russian rouletteevery time you need to take a pill for a headache or a cold. You have to meticulously read every label, consult your doctor, and hope for the best.4. Another frustrating aspect of penicillin allergiesis the lack of alternatives. When you're allergic to penicillin, it limits your options when it comes totreating bacterial infections. You can't just pop apenicillin pill and be done with it. Instead, you have to rely on other antibiotics that may not be as effective or have more side effects. It's like being stuck between arock and a hard place, with no easy way out.5. Living with a penicillin allergy also means that you have to constantly educate others about your condition.It's like being your own personal spokesperson, always having to explain why you can't take certain medications or why you have to be extra careful in certain situations. Itcan be tiring and frustrating, but it's necessary to ensure your own safety.6. Despite all the challenges and frustrations, havinga penicillin allergy has taught me to be more mindful of my health and to advocate for myself. It's made me realize the importance of knowing my own body and being proactive in my healthcare decisions. It's like a constant reminder that I have to take care of myself, even if it means going against the norm or facing obstacles along the way.7. So, if you ever find yourself allergic to penicillin, just know that you're not alone. It may be a pain, but it's a part of who you are. Embrace it, educate others, and continue to navigate the world of healthcare with caution and resilience. After all, life is full of challenges, and this is just one of them.。

刺杀小说家英语作文摘抄

刺杀小说家英语作文摘抄

In the realm of literature,the concept of a fictional assassination is a fascinating and complex theme that has been explored in various forms.Here are some excerpts from English essays that delve into the intricacies of this subject:1.The Power of Words:In the world of fiction,a writer wields the power to create and destroy.The act of assassinating a character is a demonstration of this power,often serving as a pivotal moment in the narrative that can reshape the entire story.2.Moral Dilemmas in Storytelling:Assassinating a character in a novel is not merely a plot device it is a moral decision that the author must grapple with.It raises questions about the ethics of storytelling and the responsibility of the writer towards their creations.3.The Impact on the Reader:When a beloved character is assassinated in a novel,it can elicit strong emotional responses from the reader.This emotional connection is a testament to the power of storytelling and the deep bonds that readers form with fictional characters.4.Symbolism and Metaphor:The act of assassination in fiction often carries symbolic weight.It can represent the end of an era,the triumph of evil over good,or the inevitable consequences of certain actions.It serves as a metaphor for larger themes within the story.5.The Role of Foreshadowing:Skillful writers use foreshadowing to prepare the reader for the eventual assassination of a character.This technique can heighten the tension and anticipation,making the moment of the assassination all the more impactful.6.The Aftermath of Assassination:The death of a character is not the end of their story. The aftermath of an assassination can be just as significant as the event itself.It can lead to character growth,plot twists,and a deeper exploration of the storys themes.7.The Assassin as a Character:In some narratives,the assassin is a character in their own right.Their motivations,backstory,and moral compass add another layer of complexity to the story,inviting the reader to question the nature of justice and the blurred lines between right and wrong.8.Cultural and Historical Context:Assassination in literature can also reflect cultural and historical contexts.It can be a commentary on political assassinations,a critique of power structures,or an exploration of the human capacity for violence.9.The Unpredictability of Life:The unpredictability of life is mirrored in the unpredictability of fiction.An assassination can serve as a reminder that life is fragile andthat the threads of our existence can be severed at any moment.10.The Rebirth of a Story:In some cases,the assassination of a character can lead to the rebirth of a story.It can open up new narrative paths,introduce new characters,and provide a fresh perspective on the world the author has created.These excerpts highlight the multifaceted nature of character assassination in literature, touching on themes of power,morality,emotional impact,and narrative structure.They provide a glimpse into the rich tapestry of storytelling and the profound effects that such a dramatic event can have on a work of fiction.。

第18号第14行诗赏析英语作文1000字

第18号第14行诗赏析英语作文1000字

第18号第14行诗赏析英语作文1000字Sonnet 18,often alternately titled Shall I compare thee to a summer's day?, is one of the best-known of 154 sonnets written by the English playwright and poet William Shakespeare. Part of the Fair Youth sequence(which comprises sonnets 1-126 in the accepted numbering stemming from thefirst edition in 1609), it is the first of the cycle after the opening sequence now descry bedas the Procreation sonnets. Most scholars now agree that the original subject of the poem, the beloved to whom the poet is writing, is amale ,though the poem is commonly used to describe a wo man.ln the sonnet, the poet compares his beloved to the summer season, and argues that his beloved is better. The poet also states that his beloved will live on forever through the words of the poem.Scholars have found parallels within the poem to Ovid's Tristia and Amores, both of which havelove themes. Sonnet 18 is written in the typical Shakespearean sonnet form, having 14 lines ofiambic pentameter ending in a rhymed couplet. Detailed exegeses have revealed several doublemeanings within the poem, giving it a greater depth of interpretation.Sonnet 18 is a typical English or Shakespearean sonnet.It consists of three quatrains followed bya couplet,and hasthe charactcristic rhyme scheme: abab cded efef gg. The poem carries themeaning of an Italian or PetrarchanSonnet.Petrarchan sonnets typically discussed the love andbeauty of a beloved, often an unattainable love, but not always.[5] It also contains a volta, or shiftin the poem's subject matter, beginning with the third quatrain.A facsimile of the original printing of Sonnet 18.The poem starts with a line of adoration to thebeloved—"Shall I compare thee to a summer's day?" The speaker then goes on to say that thebeloved being described is both "more lovely and more temperate”than a summer's day. The speaker lists some things that are negative about summer. It is too short—"summer's lease hath alltoo short a date"—and sometimes the sun shines too hot—"Sometime too hot the eye of heavenshines."However, the beloved being described has beauty that will last forever, unlike the fleetingbeauty of a summer's day. By putting his love's beauty into the form of poetry,the poet ispreserving it forever by the power of his written words. "So long as men can breathe, or eyes cansee, So long lives this, and this gives life to thee." The hope is that the two lovers can live on, ifnot through children, then through the poems brought forth by their love which, unlike children,will not fadeA major feature of this poem - analogy. Begins with thefirst sentencc, put " you" and "Summer" asa analogy,compare the second line of the initial determination: Are you more lovely than thesummer, more gentlc. The differcnce is due to produce its in-depth analysis of 3 to 14 lines. Specifically, the first line of 3.4.5.6.7.8 enumerated the"summer" all kinds of regrets, and 9.10.11.12.13.14 line tells the "you" all kinds of advantagescompared to the natural draw a final conclusion: "You" is far better than "Summer," "you" becausein his poetry between the lines but also has a life, and time forever. Also noteworthy is the verse13 and l4 are also, by analogy emphasized the "eternal nature. "Throughout the pocm, the poetfreely to the "you" talk, it seems that "you" is a living person, to listen to his voice, understandinghis thinking. So this poem can be said to be people in the application of techniques based on thewritten. The poem "You”r efers to an object, academia, there are two explanations, one view isthat it refers to beauty, and the other that it refers to poetry to express the good things. Now mostscholars prefer the latter.One of the best known of Shakespeare’s sonnets,Sonnet 18 is memorable for the skillful andvaried presentation of subject matter, in which the poet’s feelings reach a level of rapture unseenin the previous sonnets. The poet hereabandons his quest for the youth to have a child, and insteadglories in the youth’s be auty.On the surface, the poem is simply a statement of praise about the beauty of the beloved; summertends to unpleasant extremes of windiness and heat, but the beloved is always mild and temperate.Summer is incidentally personified as the "eye of heaven"with its "gold complexion"; the imagerythroughout is simple and unaffected,with the "darling buds of May" giving way to the "eternalsummer", which the speaker promises the beloved. The language, too, is comparatively unadornedfor the sonnets; it is not heavy with alliteration or assonance, and nearly every line is its ownself-contained clause--almost every line ends with some punctuation, which eflects a pause.Initially, the poet poses a question—”Shall I compare thee to a summer’s day?”—and thenreflects on it, remarking that the youth’s beauty far surpasses summer’s delights. The imagery isthe very essenee of simplicity:“wind”and“buds.”In the fourth line, legal terminology一”summer’s lease”一is introduced in contrast to the commonplace images in the first three lines.Notc also the poct’s use of extremes in the phrascs“morc lovely,”“all too short,”and“toohot” ; these phrases emphasize the young man’s beauty.。

值得信赖的顾问18章读后感

值得信赖的顾问18章读后感

值得信赖的顾问18章读后感英文回答:The Trusted Advisor by David Maister, Charles Green,and Robert Galford is a seminal work in the field of consulting. First published in 2000, the book has since become a classic and is widely regarded as one of the most influential books on consulting ever written.The book's central premise is that the most successful consultants are those who are able to build and maintain trusted relationships with their clients. Maister, Green, and Galford argue that trust is the foundation of all successful consulting relationships and that consultantswho are able to establish trust with their clients are more likely to be successful in helping them achieve their goals.The book provides a wealth of practical advice on howto build and maintain trust with clients. The authors discuss the importance of being honest, reliable, andcompetent, as well as the need to be able to listen to and understand the client's needs. They also emphasize the importance of being able to communicate effectively with clients and of being able to manage expectations.The Trusted Advisor is a must-read for anyone who is interested in becoming a successful consultant. The book's insights are timeless and its advice is still relevant today. If you are serious about becoming a trusted advisor, then I highly recommend reading this book.中文回答:《值得信赖的顾问》这本书由大卫·迈斯特、查尔斯·格林和罗伯特·加尔福德合著,是咨询领域的一部开创性著作。

麦田守望者18-20章概括 英文

麦田守望者18-20章概括 英文

Summary: Chapter 18After leaving the skating rink, Holden goes to a drugstore and has a Swiss cheese sandwich and a malted milk. Once again, he thinks about calling Jane, but his mind begins to wander. He remembers the time he saw her at a dance with a boy Holden thought was a show-off, but Jane argued that the boy had an inferiority complex. Holden decides that girls always say that as an excuse to date arrogant boys. Finally, he calls Jane, but no one answers. He then calls a boy named Carl Luce, whom he used to know at the Whooton School, and Luce agrees to meet him for drinks later that night.To kill time, Holden goes to see a movie at Radio City Music Hall. He finds the Rockettes’ Christmas stage show ridiculous and superficial, but it makes him remember how he and Allie used to love the kettledrum player in the Radio Citypit orchestra. The man was an unnoticed, minuscule part of the show, but he seemed to take joy and pride in what he did. After the show, the movie begins, which Holden claims to find boring as well. When it is over, he begins walkingto the Wicker Bar, where he is supposed to meet Luce. The movie was aboutthe war, so Holden thinks about the army. Based on what D. B. has told him, Holden decides that he could never be in the military. He would rather, he says,be shot by a firing squad or sit on top of an atom bomb.Summary: Chapter 19At the Wicker Bar, located in the posh Seton Hotel, Holden thinks about Luce. Luce is three years older than Holden and now a student at Columbia University. At the Whooton School, Luce used to tell the younger boys about sex. Holden says that he finds Luce amusing, even though he is effeminate and a phony. When Luce arrives, he treats Holden coolly, and Holden pesters him with questions about sex. Luce refuses to be drawn into the kind of sex discussion that they had had at Whooton, and he suggests that Holden needs psychoanalysis. Holden remembers that Luce’s father is a psychoanalyst, but Luce is evasive when Holden asks whether Luce’s father ever analyzed his own son. Annoyed by Holden’s juvenile comments and questions, Luce departs.Summary: Chapter 20After Luce leaves, Holden stays at the bar and gets very drunk. He stumbles to the phone booth and makes an incoherent late-night call to Sally Hayes, angering both her and her grandmother. He then tries to make a date with the lounge singer, an attractive woman named Valencia. When that fails, he tries, with no more success, to make a date with the hat-check girl.He decides to walk to the duck pond in Central Park to see if the ducks are still around. Along the way, he becomes quite upset when he drops and breaks the record he had bought for Phoebe. Because he had splashed water in his hair atthe hotel in an attempt to sober up, his hair begins to freeze and fill with icicles. At the duck pond, he worries about catching pneumonia and imagines his funeral. He missed Allie’s funeral, he says, because he was in the hospital after breaking the garage windows with his bare hands. He remembers going to Allie’s grave with his parents. He becomes disgusted and sad, because the idea of placing flowers on the grass that covers the stomachs of the dead disturbs him.Holden wants to talk to Phoebe, and he is running low on money, so he decides to risk going home. He expects his parents to be asleep, which will allow him to sneak in, speak with Phoebe, and then leave without being heard. He leaves the park and begins the long walk home.Analysis: Chapters 18–20Holden’s off-kilter ramblings in Chapter 18 about being killed by an atom bomb sound like the bravado of a frightened, threatened boy. We have seen Holden’s bravado throughout the novel—when he worries that he is a coward, when he screams at Maurice, when he imagines himself as a vengeful movie character seeking justice through extreme force. But bravado is most important in this section because Holden’s interaction with the effeminate Carl Luce causes himto exhibit a subtle vein of homophobia that will be important later in the novel. Like many adolescent boys, Holden is uncomfortable with sexuality and especially uncomfortable with the idea of homosexuality. Though Luce seemsto prefer women, Holden finds him slightly “flitty,” and Luce brings out an unpleasant lewdness in Holden’s behavior.Holden aggressively questions Luce about sex and seems to feel titillated throughout their conversation. Holden clearly wants Luce to give him some kind of guidance and insight into adult sexuality, but his attempts to raise the subject are clumsy and immature, and Luce refuses to interact with Holden on the same footing that they had at Whooton. When Luce leaves, Holden feels depressed and uncomfortable, and we get the sense that he is disappointed in himself—that despite his protestations that Luce is a phony, he wanted to connect with him and failed. With each successive interaction, Holden loses more faith in himself. He withdraws deeper into his cynicism, while at the same time feeling more and more desperate to break out of his loneliness. After Luce departs, Holden gets extremely drunk and acts completely unhinged. He hits on Valencia and thehat-check girl and then senselessly breaks into tears before walking through the freezing cold to the duck pond.Though Holden does not acknowledge his imbalances, we again see how little control Holden has over both himself and his worsening situation. Holden’s lack of introspection deepens our sense of the danger in which he finds himself. His thoughts as he walks to the pond reveal what may lie at the root of his manic behavior: he is upset and miserable at the memory of Allie’s death. His memory of leaving flowers on Allie’s grave leads him to another one of his defensive understatements. He was obviously shaken by the trips to the cemetery, but all hesays in his narration is that he used to go with his parents, but he stopped accompanying them because he “certainly didn’t enjoy seeing him in that crazy cemetery.” The conjunction of Allie’s memory with the image of the duck pond helps to explain Holden’s preoccupation with the pond and establishes it as one of The Catcher in the Rye’s key symbols. Allie is gone forever, and Holden does not believe in afterlife; his atheism was mentioned in Chapter 14. Now, Holden is troubled by unexplained disappearances. He is anxious to know where the ducks have gone, since he feels extremely threatened by the idea that people and things just vanish, as Allie did. The pond itself becomes a minor metaphor for the world as Holden sees it. It is “partly frozen and partly not frozen,” in a transitional state just like Holden himself and the world he inhabits.Holden’s curiosity about the ducks also demonstrates an appealingly childlike quality: his willingness (shared with his siblings) to pay attention to details that are conventionally ignored. Holden’s interest in the kettledrum player at Radio City is another of these details. Holden associates adulthood with an unwillingness to explore subtle and mysterious questions, but there are many difficult questions that he himself is unwilling to explore. He never ponders what the duck pond means to him, why memories of Allie’s death trouble him so much, or why he is having such difficulty dealing with the world around him.。

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Chapter 18 Review
What is the equilibrium constant expression for the following reaction: C(s) + O2(g) ↔ CO2(g)
Which of the following is true about the combustion of carbon: a) the reaction is spontaneous, or b) entropy decreases?
Chapter 18 Review
What 2 factors determine whether or not a reaction is spontaneous?
If a reaction is reversible, what are the relative amounts of reactant and product at the end of the reaction?
Write the rate law for the following reaction: A + 2B → C + D
An elementary reaction converts reactants to products in ____.
Activation energy is ____.
Chapter 18 Review
A mixture of hydrogen and iodine are in equilibrium with hydrogen iodide, as shown in the equation: H2 + I2 ↔ 2HI Calculate the concentration of HI when the Keq is 1 x 105, the equilibrium concentration of H2 is 0.04 M, and the equilibrium concentration of I2 is 0.009 M.
increase in entropy:
a)
A → B, or b) A → 2B
If a reaction has an equilibrium constant
(Keq) just greater than 1, how do we interpret that information?
Chapter 18 Review
Chapter 18 Review
The Keq of a reaction is 4 x 10-7. At equilibrium, the ____ are favored.
Another name for the activated complex is ____.
Which change would shift the
A catalyst works by ____.
If sulfur dioxide and oxygen can be made into sulfur trioxide, what is the reverse reaction?
Which variable is NOT required to
Chapter 18 Review
In a two-step reaction mechanism, how many elementary reactions occur?
The Ksp of calcium hydroxide is 6.5 x 10-6. If 0.10 mol of sodium hydroxide is added to 1 L of 0.0010 M Ca(OH)2, what is the final concentration of the calcium ion?
What is the effect of decreasing the volume on the contained gases?
Spontaneous reactions always ____ free energy.
Why does a higher temperature cause a reaction to go faster?
Chapter 18 Review
What is the numerical value (+ or -) of Gibbs free-energy change for a spontaneous reaction?
At what stage of a reaction do atoms have the highest energy?
following reaction to the right:
4HCl(g) + O2(g) ↔ 2Cl2(g) + 2H2O(g) a)
decrease of pressure, or
b)
increase of pressure?
Chapter 18 Review
In which of these systems is the
calculate the Gibbs free-energy
change for a chemical reaction: a)
change in enthalpy, or
b)
temperature in oC?
Chapter 18 Review
What is the effect of adding more water to the following equilibrium reaction: CO2 + H2O ↔ H2CO3
entropy decreasing:
a)
salt dissolving in water, or
b) a
liquid cooling?
Given: 2NClO(g) ↔ 2NO(g) + Cl2(g) An analysis of the equilibrium mixture in a 1 L flask is: NClO = 1.6 mol; NO = 6.4 mol; Cl2 = 0.49 mol. Calculate the value of Keq.
What is the arrangement of atoms at the peak of an energy barrier?
At equilibrium, what is the rate of production of reactants compared with the rate of production of products?
The rate of a chemical reaction normally ____ as reactant concentration increases.
Chapter 18 Review
Why does a higher concentration make a reaction faster?
Which of the following systems has
the highest entropy:
a)
10 mL of water at 50 oC, or
b)
10 mL of water at 100 oC?
Chapter 18 Review
What happens to a catalyst in a reaction?
Why does a catalyst cause a reaction to proceed faster?

In an equilibrium reaction with 1 x 108, the ____ are favored.
a
Keq
of
Which of the following explains why
Chapter 18rmic reaction at equilibrium, what is the effect of raising the temperature?
The energy that is available to do work in a reaction is called ____.
The amount of disorder in a system is measured by its ____.
Entropy measures ____ What units represent a reaction rate? For a complex reaction, the reaction
progress curve has several ____.
Chapter 18 Review
What happens to a reaction at equilibrium when more reactant is added to the system?
Which reaction results in the greatest
What physical state of nitrogen has the highest entropy?
What is another name for the catalysts in your body?
Chapter 18 Review
What is the order of the following reaction: A + 2B → C + D
Chapter 18 Review
“Reaction Rates and Equilibrium”
Chapter 18 Review
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