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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 si)vbmo3n+ /hwqe/4hqubstance for the Carnot cycle shown in the figure. Processes A → B and C → D are isothermal, whii +hvhb m4/qwe)3q/no le 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 h2m ,7j,zznc g b/5m9bf svdrllxq+s9)eat engine operating 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 and k0ulss 2oa, b1 2-jrq3s.ponh(qj5bo performs 50 J of work in each cycle. What is its ef o25 qal.b0-uknsoso j2 h3 (sr,pqb1jficiency?

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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 betwe 8ckwc0 .u5 b +npzfnbjml9(;ien a low temperature 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 opervt o- l7wpo1y):e.ocup jt, *kjis a+/ate when the outside environment 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 the2r,6j4u b:xywa th*uqu- n fxcl2d )6z working substance for an engine that undergoes the cyclic process (ABCDA) shown in the PV diagram. Thu4*):uy -a l dxn 62rcztfu, 2xjhbwq6e 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 refrigeratorpg3 qc(as/;lx that undergoes the cyclic process (ABCDA) shown in the PV diagram. The processes are all isochorics pxl;(/a3 gqc 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 revers y cs:x(/,amgzuc/b +vible cyclic process (ABCA) shown in the PV diagram. Process A →B is adiabatic. What is the efficienzc+ :ga,/mxv (/u yscbcy of this engine?



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  • 姓名:游客(未登录)
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