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习题练习：Efficiency, coefficient of performance and Carnot Cycle
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 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 working substance for the Ca zz)tb2lj2ju 0rnot cycle shown in the figure. Processes A → B and C → D are i0)jut2zb zj2l sothermal, 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 operating bej ;65pml0h sdftween $600^{\circ}C$ 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 iw3-jmq + jov8J of thermal energy and performs 50 J of work in each cycle. What is it i3v wqj-mo+8js efficiency?

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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 of a) tofj5th2h2,mvc4 odii g:* $273^{\circ}C$ 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 env5cbwlyoy:rljb69h 8x 5yk n,z(tw ;;x ironment 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 the working substan2o4wm tflnk,otz hzy45z.: 0iz+uj 7e ce for an engine that undergoes the cyclic process (ABCDA) shown in the PV diagram. The processes are a0.2t 4o+5ez:zm,fhltjzo k4u 7 ynwzi ll 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 5euctg :yoi8 c qz9d:(for a refrigerator that undergoeit:(ygu qco 8zd c95:es the cyclic process (ABCDA) shown in the 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 undergoes the z h+oo 56;j3gpwj ut7yreversible cyclic process (ABCA) shown in the PV diagram. Process A →B is adiabatic. What is the efficiency of this engin 56pgjjzho+u t7;y w3oe?



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  • 姓名:游客(未登录)
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    总分:8分 及格:4.8分 时间:不限时
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