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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 Carnot cggi;r.jg90 lt*j;o1+s; u ldpqwli.gycle shown in the figure. Processes A → B and C → D are isothermal, wulg.ij pltsl wdgo;ir9; jg;0.g1*+qhile 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 heatvb3c:bag jp3+nk xb;(/c a hkte; ,7si 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 perforo+jn8v 2c9vovu5 g wl xm4.2rm3kh9iqms 50 J of work in each cynv.2hcxvu8gv ok9 io2 rq 5 ml3+wjm49cle. What is its 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 lowhxtuefx1q0l 89 py unvo4t 7 3wma4g94so)2nq 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 operate when the outside enviaomtrg3)eab w fp0,zoc5h)c6*+ v gi7ronment 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 gq/8.e c6 p 6rih4kyartas is the working substance for an engine that undergoes the cyclic process (ABCDA) shown in the PV diagram. The processes are alq tcp6 e4i.rak/y6h8rl 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 idf8.- tpa.slt 0eazim3eal gas is the working substance for a refrigerator that undergoes the cyclic process (ABCDA) shown in the PV diagram. The processes are all isochoric or isobaric with pressurz-af03.pteta i s lm.8es 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 reversk)p 6 dic)wt(nible cyclic process (ABCA) shown in the PV diagram. Process A →B is adiabd ic ktn)wp(6)atic. What is the efficiency of this engine?



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  • 姓名:游客(未登录)
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