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习题练习：Efficiency, coefficient of performance and Carnot Cycle
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 492，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/test492.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: 8分  得分: _____________

答题人: 游客未登录  开始时间: 24年08月05日 13:25  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  
  03.47: A monatomic ideal gas is used as the we( 0n /xjlbt1rwr-9imbt ; 9gqds,g4e orking substance for the Carnot cycle shown in the figure. Processes A → B and C → D are isotherenltj9/b r0sib;d tem gg4w- r 9q,(1xmal, while processes B → C and D → A are adiabatic. During process A → B, there are 400 J of work done by the gas on the surroundings. How much heat is expelled by the gas during process C → D?



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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.24: The theoretical (Carnot) efficiency of a heat engine o 0ptoypx;0(5noe7thdek 5 . a5h;ygoaperating between $600^{\circ}C$ and $100^{\circ}C$ is:

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.07: A heat engine takes in 200 J of thermal energy a,5kqdmm8 sn *cr x5+wand performs 50 J of work in each cycle. What is its effic5s da+ qnxwkc5m,rm*8 iency?

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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skysky1258，获取更多资料
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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.41: An engine operates between a low temperature n8 ui,bgvwrj0bu.j2ckzh ( 5*of $273^{\circ}C$ and a high temperature of $546^{\circ}C$. What is the maximum theoretical efficiency of this engine?

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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.44: A refrigerator must operate when the outside environment;x m86,weukb,+l h2crliim/iyqh59l is at $22^{\circ}C$ to maintain an environment at $2^{\circ}C$ inside the refrigerator. During one cycle, the refrigerator expels 1200 J of energy to the outside environment while 400 J of work were done. What is the coefficient of performance of this refrigerator?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  10.49: A monatomic ideal gas is thxt(:;-3u px/ huvi wzre working substance for an engine that undergoes the cyclic process (ABCDA) shown in the PV diagra3x zrtw-ipu xv(u: ;h/m. The processes are all isochoric or isobaric with pressures between $P_0$ and $2P_0$ and volumes between $V_0$ and $1.5V_0$ . What is the efficiency of this engine?



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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.44: A monatomic ideal gas is the working substance for a refrigerator thh +uega b )u-w2er n8*zbzt9;nat undergoes the cyclic process (ABCDA) shown in theu8b-)9;anzeg2 r*z+whn uteb PV diagram. The processes are all isochoric or isobaric with pressures between $P_0$ and $2P_0$ and volumes between $V_0$ and 2$V_0$ . What is the coefficient of performance for this refrigerator?


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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.50: A monatomic ideal gas unv x2,hsxkx 54gdergoes the reversible cyclic process (ABCA) shown in the PV 54,2 sxhxgkxv diagram. Process A →B is adiabatic. What is the efficiency of this engine?



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