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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 substanx*qd+0hzx;q8 9 xbm iace for the Carnot cycle shown in the figure. Processes A → B and C → D are isotheb9q+z0*him d 8qxa;xx rmal, 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 between e+ v)m iv*pcyk i3k4e7efb72z $600^{\circ}C$ 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 e6yoez/ 8t9ye gnergy and performs 50 J of work in each cycle. What is its effic9/e6yoyte8zg iency?

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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 betweah-do/9ge gv;dc- do0h *ji.x en 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 operate whecsku.6fyj g61wh f- b:n 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 the working substanceh:qdy1m.,b op for an engine that undergoes the cyclic process (ABCDA) shown in the PV diagr. :mqphobyd1,am. 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 wum,b nanp r1hw**0 bz:orking substance for a refrigerator that undergoes the cyclic process (ABCDA) shown nb1 uhm, a0:wn* *zrbpin 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 reversible cyclic prhckdc; bs,33 0qemwx+ocess (ABCA) shown in the PV diagram. Process A →Bc3d ,mbqchsw e; kx0+3 is adiabatic. What is the efficiency of this engine?



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  • 姓名:游客(未登录)
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