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习题练习：Physics Unit15: Laws of Thermodynamics
本习题练习试卷来源于无忧得胜-网上国际课程 (https://5edu.win)， 为试卷打印版，您也可以在网站平台(https://autoconfig.5edu.win/)直接 访问本试卷的在线电子版并查看正确答案与解析，搜藏保存任意题目到收藏集。 访问方法: 平台首页左上角"通过试卷号快速访问"输入试卷号 73，并点击直达试卷；或浏览器地址栏内直接输入本试卷链接 https://autoconfig.5edu.win/test73.html  教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。
 作者: admin    总分: 71分  得分: _____________

答题人: 游客未登录  开始时间: 22年08月15日 12:53  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The process shown on the T-V graph ison8jwu f ,m ijo)u3k69 an


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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In an isothermal process, there ism/5* fhx 6jz0nj:aof:jkqi0 f no change in

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the first law of th0rtwdal 2)asj kj 6.h3ermodynamics, $Q = \Delta U + W$, is applied to an ideal gas that is taken through an isothermal process,

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A gas is expanded to twice its originoi4obs 7doe5+ al volume with no change in its temperature. This proces7d5bo 4eo+i oss is

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal gas is compressed iso zdo2uxf6) rw 8wy9m-vthermally from 30 L to 20 L. During this process, 6.0 J of energy is expended by the external mechanism that compressed the gas. What is the change of intermuwrd9y6-ofwzx v)28 nal energy for this gas?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal gas is compressed to one-half its original volume during an iso, w jig/flk634 e;r4 fr2hwkljthermal process. Tg6hej j /;l 3wlrk,4if4wfk r2he final pressure of the gas

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal gas is expanded isothermally from 20 L to 30 L. During this process,5:ncki h/bnit 8*j+1nn.cyk p 6 J of energy is expended by the external mechanism that expanded the gas. Which of the following statemenc it18nkyc5kb* hjni/+:.n p nts is correct?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A gas is quickly compressedyiop)op0.49hxm;f e l in an isolated environment. During the event, the gas exchangex e;9 lpip.m4yoo)f0hd no heat with its surroundings. This process is

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the first law of t+amep 6e,w* juhermodynamics, $Q = \Delta U + W$, is applied to an ideal gas that is taken through an adiabatic process,

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A monatomic ideal gas is comub jzo07at+8cqr-et )pressed to one-half its original volume during an adiabatic process. The final pree-ct btuq or8+0 7z)jassure of the gas

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two cylinders of gas identical in all respects except that okap t;1y.cfi 3/c aa+une containscu1t.a cka+;3piy/ f a $O_2$ and the other $H_e$. Both hold the same volume of gas at STP and are closed by a movable piston at one end. Both gases are now compressed adiabatically to one-third their original volume. Which gas will show the greater temperature increase?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider two cylinders of gas identical in all rejbz)l2g5 +f mzspects except that one contains +z gj)5lf2zb m$O_2$ and the other $H_e$. Both hold the same volume of gas at STP and are closed by a movable piston at one end. Both gases are now compressed adiabatically to one-third their original volume. Which gas will show the greater pressure increase?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The process shown onu7f3pmi ;p 5cfg ,n:v9 (b1e(fulrqes the PV diagram is an


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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In an isobaric process, thehte*w;h9br+k re is no change in

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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the first law of1at)uq:cp 8qyp +a lwy,k*bo1 thermodynamics, $Q = \Delta U + W$, is applied to an ideal gas that is taken through an isobaric process,

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A gas is allowed to expand at constant pressure as heat is added to it. vuz ia+0:p srces7+ k- This procaiu ++c- 7s: er0zpksvess is

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Ten joules of heat energy are transferred to y wj8ov) heybw7z:89 ec;kgp)a sample of ideal gas at constant pressure. As a result, the ihogev:yc8)b8 w p9)y z7j;k wenternal energy of the gas

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The process shown onn n4 gjf3fq/yfs47sq. the PV diagram is


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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In an isochoric proc fvy55q btf,yl1 n pd)c7c0jt9ess, there is no change in

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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When the first law of thermodyn/9i0xkq7za eo :bsab(0h g* tmamics, $Q = \Delta U + W$, is applied to an ideal gas that is taken through an isochoric process,

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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A gas is confined to a rigid container that cannot expand as heat ene,edmnp.*r sxs( s3q s0 - ewwbus*5sgb68ry.u rgy is added to it6s3suss ys( *qb,d*-exrr80b. ng5 eu.p mws w. This process is

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Ten joules of heat energy are transferred to antv iy27b3us81h9jn o sample of ideal gas at constant volume. As a result, the internal energy jnhu b9s 8o7i vnt31y2of the gas

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23#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State the first law of thermodynamg1 a-5eh) xnidics.
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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Is it possible to transfer hea5)i,.hjk ob(ob inst0:7 ntdwt from a hot reservoir to a cold reservoir?

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Is it possible to trab4du24:skmvl-6 thbvnsfer heat from a cold reservoir to a hot reservoir?

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26#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State the second law of thermodynamics accokz ut4x /na2ohpqpqh vyyc3/v1l7 .mo7:++o erding to Clausius.
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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A gas is taken through the cy7vge vh1 ukwmzj-u 8d b,8o8:ezi h87gcle illustrated here. During one cycle, how much work is done by an enginh8gg:jo7 u 1wdbm,8z vvk7hei8 u -8eze operating on this cycle?


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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The efficiency of a heat engine is defi/j 5nk:g awp 2y *gzib)w-tg5oned as the ratio of

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If the theoretical efficiency of a Carnot engine is to b..+- a,tdpqxaf+g umg8k spl:e 100%, the heat sink must xa u+, dg.:a+qpsp klmf g.t8-be

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A Carnot cycle consi9 cgh2satqa y:nv-/;csts of

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31#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
Give the Kelvin-Planc3e)xio4qse;/z. uvln 9saio 8k statement of the second law of thermodynamics.
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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The coefficient of performance (COP) of adx*guf .j **.nret.dg: tmh6d refrigerator is defined as the ratio od.hdr .t* d*6fn *xtegjgm:. uf

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The coefficient of performance (COP) of a heat 3bbjs1 cq :wpl.rr ;8ppump is defined as the ratio of

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When water freezes, the enh7 uvx2sks, a5x9x ode8hb8o4tropy of the water

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  According to the second law of thucl/v4 bls /c)ermodynamics, for any process that may occur within an isolated system, which one of the chocc4ll) bv/us/ices applies?

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36#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
Give a general statement of the second law of thermodynamics.g0 (.cpud0+dccy uyg2
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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The second law of thermodynamics leads us to cxae68erbg; c :k3s1 luonclude that

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During an isothermal p*.e 9fn3am2zd 0kp z ,lgql0pmrocess, 5.0 J of heat is removed from an ideal gas. What is t3*2.p k0 am9lnl,0 gdfep qmzzhe change in internal energy?

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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During an isothermal process, 5.0 J of heat is rk )qeimgp62n )emoved from an ideal gas. What is the epg k2mi6q)n)work done in the process?

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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The work done on an ideal gas system in an isothermq gh3hwk r.,+d1s ysd4al process is -400 J. What is the change4 hh,skgs yd3d1q+r. w in internal energy?

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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  200 J of work is done2ti(vc li o+g -3ekx.j in compressing a gas adiabatically. What is the change in internal energy of the gasteo+ xvkgj2c.il3i( -?

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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal gas undergoes an adiabatic process while doing x sj;vnd 0bkd+z :: xc35+qvoz25 J of work. What is the change in innz5:v + : ck0doq;x+sdzvbx3jternal energy?

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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In an isochoric process, t)n4 or6wzny*fr-4c t9o6 oz uuhe internal energy of a system decreases by 50 J. Wha9 t ur6zf6w)o 4u -4ryonczn*ot is the work done?

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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In an isochoric process, the internal energy of a system decreases by 50 J. 4.,kixo nrdp9 What , .i9dxk ro4pnis the heat exchange?

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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A certain amount of a monatomic gas is maintained at xul))ep4cv(qvnw ozk82bh-.)i v fy (constant volume as it is cooled by 50 K.cfnqe)yl8 ko vuvh wb- i v.)zp(4(x)2 This feat is accomplished by removing 400 J of energy from the gas. How much work is done by the gas?

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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A monatomic gas is cooled by 50 K at constant volume when 8d8 7z0f 5w ljr9ald7nu1mbpu o 2uba9)31 J of energy is removed from it. Howm0jddzn 781u )uw 7 9fbbu9prol2al5a many moles of gas are in the sample?

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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A system consists of 3.0 kg of watwv8h9 q:1h,wr0 djudoer at $80 ^{\circ}C$. 30 J of work is done on the system by stirring with a paddle wheel, while 66 J of heat is removed. What is the change in internal energy of the system?

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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A heat engine receives 7000 J of heat and loses 3000 J in each cytygas49 cg(j. cle. What is tgyg4(t as.j9 che efficiency?

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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A heat engine has an effw ck0d3)k9wn ficiency of 35.0% and receives 150 J of heat per cycle. How much work does it perform in each cycle?ww93cn 0 )kkdf

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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A heat engine has an efficiency of 35roqi, u /m , kyqm1ez0v9:b4mv.0% and receives 150 J of heat per cycle. How much heat does it exhausr1ko0y9 mvbz e:m,ui,4m qv /qt in each cycle?

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51#
 
  303

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52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A heat engine absorbs 64 kcal of heat each cycle and exhausts 4 ej/; q;x )jpv*yi/lhz2 kcal. Calculate the efficiency of each cycle.evx)h l;;y z j*/piqj/

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53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A heat engine absorbs 64 kcal of heat each cycle and ebg1w012/c df i58 ,ujvjmqr jlxhausts 42 kcal. Calculate the work done each cyclej 058wdg1j1mfvqc lj2,/r bui .

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54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One of the most efficient engines buigh1 ccgi;h(ehq3* gsv im q57;lt so far has the following characteristics: combustion chambhgc*51g;(h 3 hgiqsm ;ec7 qvier temperature = $1900 ^{\circ}C$, exhaust temperature = $430 ^{\circ}C$, $7.0 \times 10^{9} \; cal$ of fuel produces $1.4 \times 10^{10} \; J$ of work in one hour. What is the actual efficiency of this engine?

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55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One of the most efficient engines built so far hayc(d (2+vvbso + 9exn b)lf9sws the following characteristics: combustion chamber tempev(x+(nebw+9 ld9)by 2fsvso crature = $1900 ^{\circ}C$, exhaust temperature = $430 ^{\circ}C$, $7.0 \times 10^{9} \; cal$ of fuel produces $1.4 \times 10^{10} \; J$ of work in one hour. What is the Carnot efficiency of this engine?

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56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  One of the most efficient engines built so far has the following characte-ywz p ,osrj)7ristics: combustion chamber temz,r )wy-7spoj perature = $1900 ^{\circ}C$, exhaust temperature = $430 ^{\circ}C$, $7.0 \times 10^{9} \; cal$ of fuel produces $1.4 \times 10^{10} \; J$ of work in one hour. What is the power output of this engine?

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57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A coal-fired plant generates 600 MW of electric power. The 3enl)(x3 emxq plant uses $4.8 \times 10^{6} \; kg$ of coal each day. The heat of combustion of coal is $3.3 \times 10^7 \; J/kg$. The steam that drives the turbines is at a temperature of $300 ^{\circ}C$, and the exhaust water is at $37 ^{\circ}C$. What is the overall efficiency of the plant for generating electric power?

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58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A coal-fired plant g gr .kmeq/3j,jenerates 600 MW of electric power. The plant uses $4.8 \times 10^{6} \; kg$ of coal each day. The heat of combustion of coal is $3.3 \times 10^7 \; J/kg$. The steam that drives the turbines is at a temperature of $300 ^{\circ}C$, and the exhaust water is at $37 ^{\circ}C$. What is the Carnot efficiency?

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59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A coal-fired plant gen3so- -j;k-d l i r zff)8judxx4odl.u*erates 600 MW of electric power. The plant uses $4.8 \times 10^{6} \; kg$ of coal each day. The heat of combustion of coal is $3.3 \times 10^7 \; J/kg$. The steam that drives the turbines is at a temperature of $300 ^{\circ}C$, and the exhaust water is at $37 ^{\circ}C$. How much thermal energy is exhausted each day?

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60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the Carnot efficiency of an engine which opm ;c *bx3rv7h;(kd4g sllandn8+mgj9erates between $450 ^{\circ}K$ and $310 ^{\circ}K$?

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61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the maximum theoreticjoj ilh4sgx, o/(ynm*;; +4 x;jrwuo eal efficiency possible for an engine operating betweeji +j hrn ;;4; omoxsxu,y lew(*4ojg/n $100 ^{\circ}C$ and $400 ^{\circ}C$?

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62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The efficiency of a Carnot engine is 35.0%. What is the temperature of thqe 0 unch,ia,4 k*fki8h xn1r(e cold res,18hi0ukqi, 4e*rkac xn( nfh ervoir if the temperature of the hot reservoir is $500 ^{\circ}K$?

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63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A heat engine operating betw ykxo( 4n3hp5leen $40 ^{\circ}C$ and $380 ^{\circ}C$ has an efficiency 60% of that of a Carnot engine operating between the same temperatures. If the engine absorbs heat at a rate of 60 kW, at what rate does it exhaust heat?

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64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A refrigerator removes heat from the freezing compartmh6p9 peo(t l4ment at the rate of 20 kJ aoe htp9l p6m4(nd ejects 24 kJ into a room per cycle. How much work is required in each cycle?

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65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A refrigerator removes heat from the freezin:mniciy /0s6gtl,* b fg compartment at the rate of 20 kJ and ejects 24 kJ into a room per cycle. What / i y:6b,*tlicg mfns0is the coefficient of performance?

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66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  During each cycle of operation, a re *6kqhfuyv4f 5frigerator absorbs 230 J of heat from the freezer and expels 35fuv qy*6kh54 f6 J of heat to the room. How much work input is required in each cycle?

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67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the change in entropy when 5 h i;0jot 2y-xzwu:0eu( u2-x1qvuvp m0 g of ice melt at $0 ^{\circ}C$?

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68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When 0.50 kg of ice freezes, the change in entrop(vxlezem+))8 9 tm uipy is

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69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1.0 kg of steam at $100 ^{\circ}C$ condenses to water at $100 ^{\circ}C$. What is the change in entropy in the process?

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70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A container of ideal gas at STP undergoes an isothermal expansihifpex u7 e/)v(*ta8h 4f0gocon and its entropy changes t iu0 hc7 h4o e(8a/fg*fx)pveby
3.7 J/e K. How much work does it do?

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本习题练习题目来源于无忧得胜-网上国际课程 (https://5edu.win)，学生可刷题练习，扫右侧二维码或加微信xxxxxxxxxx，获取更多资料
教师可以抽题组卷或一键复制本试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力
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71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A piece of metal at ug94 3y)bds wiu4( spa$80 ^{\circ}C$ is placed in 1.2 L of water at $72 ^{\circ}C$. The system is thermally isolated and reaches a final temperature of $75 ^{\circ}C$. Estimate the approximate change in entropy for this process.

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