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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 workinpwez :rc 1k wk ;k2enrne-20)rv)ji (wg substance 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 gas0:er1ze)(kp2)c j;nnvw r wk-k2 eriw 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 operatiqcijt a6v r-++ng 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 Jbo6/s -;l vzna of thermal energy and performs 50 J of work in each cycle. What is n lbsz-/ oa;6vits 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 tz0qt+ :3 nd lebw8 +y3a5lmi+9jpvto$273^{\circ}C$ 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 outsidev 2xa+53)viw3x+qba7lvhp /k*kc ucb 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 substance for an engine tha8;2q qewl 6iwit undergoes the cyclic process (ABCDA) shown in the PV diagram. The processes are all isw ;2qe8i6il qwochoric 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 rq svdv/ +(h3wgas is the working substance for a refrigerator that undergoes the cyclic process (ABCDA) shown in the PV diagram. Td v3hw /+(vqsrhe 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 un mt4qq.dev5 n3dergoes the reversible cyclic process (ABCA) shown in the PV diagram. Process A →B is adiamq 543v qt.denbatic. What is the efficiency of this engine?



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  • 姓名:游客(未登录)
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