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已知反应NO2(g)+CO(g)═NO(g)+CO2(g)的能量变化如图所示,下列说法正确的是( )
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高三下学期化学《》真题及答案
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已知在25℃时2Cs+O2g=2COg△H1=-222kJ/mol2H2g+O2g=2H2Og△H2
-82kJ/mol
-41kJ/mol
-312kJ/mol
+82kJ/mol
12013年以来全国很多地区都曾陷入严重的雾霾和污染天气中冬季取暖排放的CO2汽车尾气等都是形成雾霾
已知C.s+O2g==CO2gΔH1CO2g+Cs=2COgΔH22COg+O2g==2CO2gΔH
ΔH1>0,ΔH3<0
ΔH2>0,ΔH4>0
ΔH1=ΔH2+ΔH3
ΔH3=ΔH4+ΔH5
过渡态理论认为化学反应并不是通过简单的碰撞就能完成的而是从反应物到生成物的过程中经过一个高能量的过渡
过渡态理论认为化学反应并不是通过简单的碰撞就能完成的而是从反应物到生成物的过程中经过一个高能量的过渡
已知COg+H2Og→CO2g+H2g是基元反应该反应是级反应
一级
二级
三级
四级
已知可逆反应COg+H2OgCO2g+H2gΔH<0反应达到平衡状态后欲提高CO的转化率可以采取的措
增大压强
升高温度
增大CO的浓度
分离出CO2
下列反应方程式中哪个反应放出的热量最多
CH4(g)+2O2(g)=CO2(g)+2H2O(L)
2CH4(g)+4O2(g)=2CO2(g)+4 H2O(L)
CH 4g+2O2(g)=CO2(g)+2H2O(g)
2CH4(g)+4O2(g)=2CO2(g)+4H2O(g)
在密闭容器中可逆反应COg+NO2gCO2g+NOg△H<0当达到平衡而其它条件不变时若改变下列条件
当前环境问题是一个全球重视的问题引起环境问题的气体常见的有温室气体CO2污染性气体NOxSOx等如果
12013年以来全国很多地区都曾陷入严重的雾霾和污染天气中冬季取暖排放的CO2汽车尾气等都是形成雾霾
1一定条件下发生反应COg+H2OgCO2g+H2g向2L.密闭容器中通入2molCOg1molH2
已知C.s+O2g===COgΔH=-110.5kJ·mol-1①C.s+O2g===CO2gΔH=
-283.01 kJ·mol-1
+172.51 kJ·mol-1
+283.1 kJ·mol-1
+504.00 kJ·mol-1
I..甲醇是一种重要的化工原料有着重要的用途和应用前景工业生产甲醇的常用方法是COg+2H2g===
在COg+H2OgCO2g+H2g一Q的平衡中能同等程度的增加正逆反应速率的是
加催化剂
增加CO2的浓度
减少CO的浓度
升高温度
一定条件下用甲烷可以消除氮氧化物NOx的污染已知①CH4g+4NO2g=4NOg+CO2g+2H2O
CH4 (g)+2NO2 (g)= N2 (g)+CO2 (g)+2H2O (l) △H.=-867 kJ·mol-1
若0.2 mol CH4还原NO2至N2,在上述条件下放出的热量为173.4 kJ
1molCH4催化还原NOx为N2的过程中,若x=1.6,则转移的电子为3.2 mol
若用4.48L CH4还原NO2至N2,整个过程中转移的电子为3.2 mol
如图是1molNO2g和1molCOg反应生成CO2和NO过程中的能量变化示意图若在反应体系中加
已知在800K.时反应COg+H2OgH2g+CO2g若初始浓度c0CO=2mol·L-1c0H2O
已知298K时下述反应的有关数据C.s+1/2O2g=COg△H1=-110.5kJ·mol-1C.
283. kJ·mol-1
+172.5 kJ·mol-1
-172.5 kJ·mol-1l
-504 kJ·mol-1
1一定条件下发生反应COg+H2OgCO2g+H2g向2L.密闭容器中通入2molCOg1molH2
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Scienceisfinallybeginningtoembraceanimalswhowereforalongtimeconsideredsecond﹣classcitizens. AsAnniePottsofCanterburyUniversityhasnotedchickensdistinguishamongonehundredchickenfacesandrecognizefamiliarindividualsevenaftermonthsofseparation.Whengivenproblemstosolvetheyreasonhenstrainedtopickcoloredbuttonssometimeschoosetogiveupanimmediatefoodrewardforaslightlylaterandbetterone.Healthyhensmayaidfriendsandmournwhenthosefrienddie. Pigsrespondmeaningfultohumansymbols.WhenaresearchteamledbyCandaceCroneyatPennStateUniversitycarriedwoodenblocksmarkedwithXandOsymbolsaroundpigsonlytheOcarriersofferedfoodtotheanimals.ThepigssoonignoredtheXcarriersinfavoroftheO's.Thentheteamswitchedfromreal﹣lifeobjectstoT﹣shirtsprintedwithXorOsymbols.StillthepigswalkedonlytowardtheO﹣shirtedpeopletheyhadtransferredtheirknowledgetoatwo﹣dimensionalformatanotinconsiderablefeatofreasoning. I'vebeenguiltyofprejudicedexpectationsmyself.AtthestartofmycareeralmostfourdecadesagoIwasfirmlyconvincedthatmonkeysandapesout﹣thinkandout﹣feelotheranimals.They'reotherprimates灵长目动物afterallanimalsfromourownmammalian灵长目动物class.FairlysoonIcametoseethatalongwithourclosestlivingrelativeswhalestooaremastersofculturallearning.andelephantsexpressprofoundjoyandmourningwiththeirsocialcompanions.Long﹣termstudiesinthewildonthesemammalshelpedtofuelaviewpointshiftinoursocietythepublicnolongersoeasilyacceptsmonkeysmadetoundergopainfulprocedureinlaboratorieselephantsforcedtoperformincircusesanddolphinskeptinsmalltanksatthemeparks. OvertimethoughasIbegantobroadenoutevenfurtherandexploretheinnerlivesoffishchickenspigsgoatsandcows1startedtowonderWillthenewscienceoffoodanimalsbringanethical伦理的revolutionintermsofwhoweeat?Inotherwordswillourethicsstarttocatchupwiththedevelopmentofourscience? Animalactivistsarealreadythereofcoursecommittedtonoteatingtheseanimals.Butwhatabouttherestofus?Canpayingattentiontothethinkingandfeelingoftheseanimalsleadustomakechangesinwhoweeat? 1AccordingtoAnniePottshenshavetheabilityof. A.interaction B.analysis C.creation D.abstraction 2Theresearchintopigsshowsthatpigs. A.learnlettersquickly B.haveagoodeyesight C.canbuildupagoodrelationship D.canapplyknowledgetonewsituations 3Paragraph4ismainlyabout. A.thesimilaritiesbetweenmammalsandhumans B.thenecessityoflong﹣termstudiesonmammals C.achangeinpeople'sattitudestowardsanimals D.adiscoveryofhowanimalsexpressthemselves 4Whatmightbethebesttitleforthepassage? A.TheInnerLivesofFoodAnimals B.TheLifestylesofFoodAnimals C.ScienceReportsonFoodAnimals D.ARevolutioninFoodAnimals
Anycaraccidentisfrighteningbutanaccidentinwhichyourvehicleisthrownintothewaterwithyoutrappedinsideisabsolutelyterrifying.1Howevermostdeathsresultfrompanicwithoutaplanorunderstandingwhatishappeningtothecarinthewater.Byadoptingabrace支撑positionactingdecisivelyandgettingoutfastyoucansaveyourselffromasinkingvehicle. Braceyourselfforimpact撞击力.Assoonasyou'reawarethatyou'regoingofftheroadandintoabodyofwateradoptabraceposition.Theimpactcouldsetofftheairbagsysteminyourvehiclesoyoushouldplacebothhandsonthesteeringwheelinthetenandtwoposition. Undoyourseatbelt.2Unbucklethechildrenstartingwiththeoldestfirst.Forgetthecellphonecall.Yourcarisn'tgoingtowaitforyoutomakethecall. 3Leavethedooraloneatthisstageandconcentrateonthewindow.Acar'selectricalsystemshouldworkforuptothreeminutesinwatersotrythemethodofopeningitelectronicallyfirst.Manypeopledon'tthinkaboutthewindowasanescapeoptioneitherbecauseofpanicormisinformationaboutdoorsandsinking. Breakthewindow.Ifyouaren'tabletoopenthewindoworitonlyopenshalfwayyou'llneedtobreakitwithanobjectoryourfoot.Itmayfeelcounter﹣intuitive有悖常理的toletwaterintothecar. 4 Escapewhenthecarhasequalized.Ifithasreachedthedramaticstagewherethecarcabinhasbeenfilledwithwaterandithasbecomebalancedyoumustmovequicklyandeffectivelytoensureyoursurvival.5Whilethereisstillairinthecartakeslowdeepbreathsandfocusonwhatyou'redoing. A.Openthewindowassoonasyouhitthewater. B.Survivingasinkingcarisnotasdifficultasyouthink. C.Ittakes60to120secondsforacartofillupwithwaterusually. D.Suchaccidentsareparticularlydangeroustotheriskofdrowning. E.Inconclusionifyouknowwhattodointhewateryouwillbesafe. F.Thisisthefirstthingtoattendtoyetitoftengetsforgotteninthepanic. G.Butthesoonerthewindowisopenthesooneryoucanescapedirectlythroughit.
8分October15thistheGlobalHandwashingDay.Activitiesareplannedinmorethan20countriestogetmillionsofpeopleinthedevelopingworldtowashtheirhandswithsoap.Forexampledonors捐赠者willgive150000barsofsoaptoschoolsinEthiopia. Expertssaypeoplearoundtheworldwashtheirhandseverydaybutveryfewusesoapatso﹣calledimportantmoments.Theseincludeafterusingthetoiletaftercleaningababyandbeforetouchingfood. GlobalHandwashingDayistheideaofthePublic﹣PrivatePartnershipforHandwashingwithSoap.PartnersincludetheUnitedNationsChildren'sFundAmericangovernmentagenciestheWorldBankandsoapmakersUnleverandProcterandGamble.Theorganizerssayallsoapsareworkingwellatremovingdisease﹣causinggerm细菌.Theysaythecorrectwaytowashistowetyourhandswithasmallamountofwaterandcoverthemwithsoap.Rub揉搓itintoallareasincludingunderthefingernails指甲.Rubforatleasttwentyseconds.Thenrinsewellunderrunningwater.Finallydryyourhandswithacleanclothorwavethemintheair. ThePartnershipforHandwashingsayssoapisimportantbecauseitincreasesthetimethatpeoplespendinwashinghands.Soapalsohelpstobreakupthedirtthatholdsmostofthegerms.Anditusuallyleavesapleasantsmell.ThePartnershipforHandwashingalsosayswashingwithsoapbeforeeatingorafterusingthetoiletcouldsavemorelivesthananyvaccine疫苗ormedicine.Handwashingcouldalsopreventthespreadofotherdiseases.Whenpeoplegetgermsontheirhandstheycaninfect感染themselvesbytouchingtheireyesnosesormouths.Thentheycaninfectothers. 1What'sthebesttitleforthispassage? A.Saynotowashinghandsinthewrongway. B.Findoutwhywashinghandscarefullyissoimportant. C.Wanttolivealongerlife?﹣washyourhands. D.Handwashingsoimportant﹣﹣﹣﹣itgetsadayofitsown. 2ThewordrinseinParagraph3probablymeans. A.todryyourhands B.towashawaythesoap C.torubyourhandscarefully D.tocleanyourfingers 3Thelastparagraphmainlytellsus. A.howtowashyourhandscorrectly B.whywashinghandswithsoapissoimportant C.thedangersofwashinghandswithoutsoap D.whenweshouldespeciallywashourhandswithsoap 4Inwhichpartofnewspaperwouldyoumostprobablyreadthispassage? A.Sportsevents B.Publicservice C.Healthreport D.Advertisement
Themountainvillageis可进入的onlyonfoot.
和她妈妈比起来她算很高了. hermothersheistallenough.
健康的生活方式指健康的饮食和有规律的锻炼. Ahealthylifestylemeanseatinghealthilyandregularly.
10分IwastenwhenIfirstsatwithmygrandmotherbehindthecashier收银台inhergeneralstore.1Iquicklylearnedtheimportanceoftreatingcustomerspolitelyandsayingthnakyou. AtfirstIwaspaidincandy.2Iworkedeverydayafterschoolandduringthesummerandonweekendsandholidaysfrom8a.m.to7p.m.Myfatherhelpedmesetupabannkaccount.3 BythetimeIwas12MygrandmotherthoughtIhaddonesuchagoodjobthatthepromotedmetosellingcosmetics化妆品.Idevelopedtheabilitytolookcustomersdirectlyintheeye.EventhoughIwasjustakidwomenwouldaskmesuchthingsasWhatcolordoyouthinkIshouldwear?Itookarealinterestintheirquestionsandwasabletotranslatewhattheywantedintomakeup化妆ideas.4 Thejobtaughtmeavaluablelessontobeasuccessfulsalespersonyoudidn'tneedtobeaRocketscientist﹣youneededtobeagreatlistener.5expecttheyareNOlongerwomenpurchasingcosmeticsfrommeinsteadtheyarekidswhotellmewhichtoystheywouldliketoseedesignedanddeveloped. A.LaterIreceived50centsanhour. B.Beforelongsheletmesirtherebymyself. C.Iendedmysellingarecordamountofcosmetics. D.TodayIstillcarrythatlessonwithmeIlistentocustomers. E.Mygrandma'strusttaughtmehowtohandleresponsibility. F.SoonIfoundmyselflookingmorebeautifulthaneverbefore. G.WatchingmymoneygrowwasmorerewardingthananythingIcouldhavebought.
15分Whensomeonehasdeeplyhurtyouitcanbeverydifficulttoletgoofyouranger.1forgivenessispossible﹣anditcanbesurprisinglybeneficialtoyourphysicalandmentalhealth.Sofarresearchhasshownthatpeoplewhoforgivecanhavemoreenergyand2goodsleep. Sowhensomeonehashurtyoucooldownfirst.Takeacoupleof3breathandthinkofsomethingthat4giveyoupleasureabeautifulsceneinnatureorsomeoneyoulove.Don'twaitfor5apology.Manytimesthepersonwhohurtsyoumayneverthinkof6apologizesaysDr.FredericLuskin7wrotethebookForgiveforGood.Theymayhavewantedtohurtyouortheyjustdon'tseethingsthesameway.Soifyouwaitforpeople8saysorryyoucouldbewaitingaverylongtime.Nextkeepinmindthatforgivenessdoesnot9necessarymeanacceptingtheactionofthepersonwhoupsetsyou.Insteadlearntolookforthelove10beautifulandkindnessaroundyou.Finallytrytoseethingsfromtheotherperson'sposition.Youmayrealizethatheorshewasactingoutofcarelessness.
Howdareyou!Myangerfinallyburstoutwhenmyson1togotothepianoclassesforthethirdtimethatday.Herolledhiseyesatmewhichmademeeven2.Icompletelylostmy3andscreamedatthetopofmylungsEnough!Youarenotmyboyanymore!Hedidn't4ortalkbacktome.Herespondedin5withalookofhelplessnessthatIhadneverseenbefore.Heusedtocryviolentlyandbegmeto6him.Theinnocenceshininginhisbigeyeswould7thathot﹣temperedbeastinmeawayintheend.8.thistime… Didwhathehaddonereallymakeme9?No.Didsuchangercomeentirelyfromhisimproper10?No.HadIevergivenitachancetolistentoand11him?No.Mydemandingjobmy12houseworkmykid'scryforcompany…allformedaminefield雷区andallthatwasneededto13itupwasafuse导火索.Mysonwasthe14. Therestofthedayhe15anoutdoorwalkarideintheparkandevenhisfavoritegamesandjustwantedtobealone.Icould16thegreatestsorrowandthemosttrueinnocenceinhiseyes.AfteradmittingmyownfaultIheldthistinytremblingcreature17inmyarmstearsswellinginmyeyes. ForthosewhobelieveSticksandstonesmaybreakthebonebut18canneverhurtanyoneIhaveapieceofheartfeltadvice.Donottrythismostpowerfulweapon19thepeopleyoulove.Itis20enoughtocutthedeepestintoasoul. 1A.refused B.requested C.decided D.demanded 2A.calmer B.emptier C.happier D.angrier 3A.breath B.weight C.temper D.thought 4A.cry B.shout C.smile D.respond 5A.doubt B.relief C.silence D.surprise 6A.pardon B.praise C.abandon D.accompany 7A.put B.give C.throw D.drive 8A.Otherwise B.However C.Therefore D.Moreover 9A.satisfied B.puzzled C.moved D.annoyed 10A.advice B.behavior C.words D.argument 11A.hug B.blame C.forgive D.understand 12A.endless B.enough C.important D.meaningful 13A.put B.blow C.heat D.burn 14A.choice B.answer C.victim D.disaster 15A.declined B.shared C.enjoyed D.accepted 16A.retell B.forget C.read D.forecast 17A.rudely B.firmly C.loosely D.casually 18A.voice B.words C.force D.feelings 19A.for B.with C.beyond D.against 20A.hard B.soft C.sharp D.smooth
WintersarealwayslongandcoldinNorthChina.Thewinterof2008wasespeciallytoughinonesouthwesterncity1itbecameextremelycoldanditwasalsoadifficulttimeforme.Whatwasworsean2injuryhappenedtomeanditmightkeepmeinbedforseveralmonthsJustintimefortheSpringFestivalmymothersaidtomesighing.ButhowcouldIfeelthe3whenthesnowwassoheavyandIhadmonthsofphysical4ahead? OnedayIwasdoingmyhousework5therewasatapagainstthewindowfromabranchofthetroublesomefruittree.OnhearingthiswithmyeyesclosedslowlyIbegantorecallthefallof1995whensomebodyplacedapipefrommypumpnexttothe6.Theearthwassowetthatit7immediatelywithmostitsbarerootsupward.Seeingthismymother8topullitoutbutIrefused.Howhardit'strying!Isaid9thedirectionofitsstrongholdingoftheearth.Itis10ofachancetosurvive.Withtoolswe11drysoilaroundthetreeandputupsomesupportsintothegroundmakingit12upright. SeveralmonthshadpassedbeforeIcouldbe13ofit.Surprisinglywhenspringreturnedmyrescue14hadgrownsomeleavesandmany15.In2009thatlittlerescuestickhadgrownintoatoweringtree.Whatanunbelievablemiracleoflife! ThedaybeforetheSpringFestivalthe16atthewindowwascontinuingthemorefiercewindthe17soundasiftoremindmetolookupandappreciateitspowerfullife. ThatnightIsleptpeacefullyhavingan18.Inthedreamsomeflowerswerecomingout19.ThenextmorningIstoodagainstthewindow.20thewindowwasthetreeburstingwithlife.AnywayIhadawonderfulSpringFestivalthatyear. 1A.where B.which C.when D.that 2A.admirable B.terrible C.favorable D.slight 3A.duty B.joy C.cold D.failure 4A.treatment B.report C.exercise D.experiment 5A.while B.as C.when D.that 6A.window B.tree C.branch D.wall 7A.stoodup B.cameout C.gotout D.felldown 8A.decided B.pretended C.failed D.continued 9A.attachingto B.watchingover C.lookinginto D.pointingto 10A.confident B.proud C.worthy D.certain 11A.threw B.turned C.needed D.placed 12A.bend B.drop C.stand D.swing 13A.aware B.tired C.worthwhile D.proud 14A.tool B.stick C.pipe D.pump 15A.roots B.nuts C.flowers D.stems 16A.tapping B.striking C.attacking D.hitting 17A.more B.most C.better D.best 18A.idea B.walk C.rest D.dream 19A.politely B.shyly C.passively D.wildly 20A.On B.Outside C.Inside D.Besides
假定英语课上老师要求同桌之间交换修改作文请你修改同桌写的以下作文.文中共有10处语言错误每句中最多有两处.每处错误仅涉及一个单词的增加删除或修改. 增加在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错的词下划一横线并在该词下面写出修改后的词. 注意1.每处错误及其修改均仅限一词 2.只允许修改10处多者从第11处起不计分. Myfirsttriptothezoowasyearsbeforeduringanelementaryschoolfieldtrip.ItisanactivityIstillrememberedtothisday.ItwasforthefirsttimethatIhadfoundmesoclosetoanimalsliketigersandlions.Iwouldsaythatthetripwaswortheveryminuteoftimespending.Howeversomefeelthatanimalsshouldnotbekeptincagesandshouldratherbeletoutinthewild.Theythinkkeepinganimalincagesshowsthecruelofhumanbeings.AsfarasIconcernedwithoutzoosmanyofuswouldneverhavethechancetoseehowatigerorlionreallylookslike.
HemaynothaveanSacrosshischestbutthisdogismostcertainlyahero. HarleywhowasrescuedfromapuppymillfouryearsagowasnamedtheAmericanHumaneAssociation's2015AmericanHeroDog.Harleywhoismissinganeyeandhasothermedicalissuesfromhistimeatthemillisnowaspokes﹣dogagainstpuppymills.HeservesastheadorablefurryfaceoftheHarleytotheRescuecampaignwhichraisesfundsfortheNationalDogMillRescueaccordingtoapressrelease. Thepupwasrescuedbackin2011andadoptedbyRudiandherhusbandDan.ItwasjustfouryearsagothathewaspulledfromthecageinthepuppymillandlefttodieHarley'sownerRudisaidduringtheawardsshowattheBeverlyHiltonHotelinLosAngelesthispastweekendaccordingtoToday.com.Weneverwouldhaveeverthoughthewouldlivethislongandmakesuchadifferenceforsomanypuppies. ThedogwasoneofeightfinalistsupfortheAmericanHeroDogandwaschosenasthewinnerthroughpublicvotes.Thefinalistsallwon﹩1500tobedonatedtooneofAmericanHumaneAssociation'scharitypartnerswithHarleyreceivinganother﹩5000togotowardhischaritypartnerNewLeashOnLife. AccordingtothereleaseHarleyspent10yearsatthepuppymillandenduredroughtreatmenttherewhichledtohismanymedicalissues.Helosthiseyeasaresultofhiscagebeingpower﹣washedwithhiminside. Thedogisn'tjustthefaceofhiscampaignhealsogoesonrescuemissionsandmakespublicappearancesateventsandschoolstoraiseawarenessforpuppymills. Thisincredibleworkisallduetothedog'sfightingspirit.Thatspiritisallowinghimnowtobethevoicefordogswhocannotspeakforthemselvesandgiveeverybodyhopethattomorrow'sgoingtobeabetterday. 1HowdidtheHarleytotheRescuecampaignfunction? A.Bysavingdogsfromapuppymill. B.ByoperatingtheAmericanHumaneAssociation. C.BycollectingmoneyfortheNationalDogMillRescue. D.Bygivingendangereddogs﹣enoughmedicaltreatment. 2Whatwastheauthor'sattitudetothepuppymillaccordingtothetext? A.Unsatisfied. B.Sympathetic. C.Doubtful. D.Tolerant. 3WhywasHarleyblindinoneeye? A.Shewasbornwithit. B.Herownertreatedherroughly. C.Itwascausedbyamedicalissue. D.Shewaswashedheavilyinacage.
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