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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 Carno4+ u qrsooy77dt 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 on the surroundings. How much hqr74so od+yu7 eat 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) effici2zquz(d:x r3z* *bitl ency of a heat 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 o,oy)w ypm1sd*lev;/p f work in each cycle. What is its epym)sv;*w,ep1ly/o d fficiency?

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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 temperatug0fo8o*y r6k t* 0qpkyre 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 outsidr f3+ u*zgdrdpd8lt z *-,19uux3ll jye 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 that undx.+ k2lspj wen 9h9;elb/km9 zergoes the cyclic process (ABCDA) shown in the PV diagram. The processes are all isochoric or isobaric wim;9pjnk kz 9lsblweh +.9/x e2th 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 for a ra *t (m2ab ng4dj-p+6 svomof.efrigerator that undergoes the cyclic process (ABCDA) shown in the PV+on .odmvsjf(2a tm 4pg6b*-a 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 gasyrw3( 1eow hc( undergoes the reversible cyclic process (ABCA) shown in the wr( 1yo3ec(whPV diagram. Process A →B is adiabatic. What is the efficiency of this engine?



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  • 姓名:游客(未登录)
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