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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 subst6 q16:cn3hrsp zu2- x*+nk ;ucdj -t5k pjnkamance for the Carnot cycle shown in the figure. Processes A → B and C → D are isothermal, while processes B → C and D → A are adiabatic. During process A → B, there are 400 J of work done by the gas oz63pxt n-mk :juqkcchu5nrs-a kj12np ;*+ d 6n 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 operati1 a9zdg2)gq phn x/.xvng 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 ofa/uni3 6i bcs. thermal energy and performs 50 J of work in each cycle. What.i 3c6/uibs na 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 low temperature of*y2jhg jshtm 3yg;6gp5i c,5n $273^{\circ}C$ 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 is fwgmq bu* :ry1vee+ y01,og-oat $22^{\circ}C$ 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 substance fgc yi 5x8vrevxx -1r-kwn2w09or an engine that undergoes the cyclic process (ABCDA) shown in the PV diagram. The processes are all isochoki gwnxr -c8 wv1 e25r9yxx-v0ric 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 fo:bm8( op z 6ff-f,3f.v43sskxacury p r a refrigerator that undergoes the cyclic processo4 8s ybsm36f3px:z-,ck.fpf frau(v (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 the9kof59xxes )4f dabzy*7i y m) reversible cyclic process (ABCA) shown in the PV diagram. Process A →B is adyy9 kffb4x *x)59z) is 7eaomdiabatic. What is the efficiency of this engine?



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  • 姓名:游客(未登录)
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