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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 theh7rtjymj(d76.m ucb13vy 1.hse4 jc l working substance for the Carnot cycle shown in the figure. Processes A → B and C → D are isothermal, while processes B → C and D 3h6cr dc(e hj.4ju.ys17v tl7 jbymm1→ 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 hkc7*ze br)1-tbl-h xo 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 performs 50 J 6c48bx aj;e u tc3hd8o:,vkclof work in each cycle. What lco:8,kvd 6juhb t cxa;48ce3 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 tempera,i vac ,5;eng:tfvnx ot c1;q0ture 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 must59z+6:k mrlxzlbe43b r z,ae .:ycbrv operate 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 the working substance for an engine thaqd1l6 yia55)h dag1 vat undergo vyi1dd1 6a)ahlg q55aes the cyclic process (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 $1.5V_0$ . 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 workkww:6p.nwer 1 ing substance for a refrigerator that undergoes the cyclic process (ABCDA) shown in the PV diagram. The ewwwrn. :k6p1 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 processlecci .e9. fo: (ABCA) shown in the PV diagram. Process A →B is adiabatic. What is tf9o. c. cie:elhe efficiency of this engine?



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  • 姓名:游客(未登录)
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