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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 a;,t p76ajxl ;o -d)-bhfo4cnra 4 zulas the working substance for the Carnot cycle shown in the figufrju;4ldta4pax- z 7cnao)boh-6; , lre. 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 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) eff4xn3a9tw6 fxhn/ ym +ticiency 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*osjkxf t8e5-1jw8q7 0pkz cv0x1 ijw in 200 J of thermal energy and performs 50 J of work in each cycle. w18jp5ck* o01i jq-zxjk xst7 0v8wfeWhat 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 betwee gj1kxug(,ao 4n 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 when the outside environment k1v i4.6sb vvuis 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 nsc; 3;drnh a 720bs);w,*odblo blyh x9yka(working substance for an engine that undergoes the cyclic proces;yd ybaadb0( h;9 krl; wo*, xlncbhn3s)os27 s (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 working substance for a r7j u8 bywc 2 si5ti)u1 98rnrwbni+0pcefrigerator that undergoes the cyclic process (ABCDA) shown in the PV diagram. The processes are all isochoric or isobaric with pressurubtw7i0s pnb 5)8rn12ywirc8 j9u +ices 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 undes drwdj2+-e)6 ,fk u( pc41 er;5hse8pdfkuihrgoes the reversible cyclic process (ABCA) shown in the PV diagram. Process +sp swc1hrpu8 rk4d df 2 ee5-kd;hjfu()ie6 ,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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    总分:8分 及格:4.8分 时间:不限时
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