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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 y quaw.) k.moc d:z.s7the working 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 gas on the surroundings. How much heat is expe).um aw.:doycqk.sz7 lled 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 operating betwee (:dzjy -)u;:lz kxyoin $600^{\circ}C$ 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 energyulf6b+be hxx a0*7r -s and performs 50 J of work in each cycle. What i7a6b xl*sbxh r-f+u0es 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 lody ( es5xta:te;7rqf 0w 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 operafx2u(t1g0vi8 v;d vxkte 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 thej; g ( +mcb:6bsvs/yrn working substance for an engine that undergoes the cyclic process (ABCDA) shown in the PV diagram. The pgm by bc+(:s6/r;s vjnrocesses 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 refrigerator that u; uvc(sit 5)qnntib.9:)e hksndergoes the cyclic process (ABCDA) shown in the PV diagram. The processes are al5s.q) et ki:;nsiuhnc tbv)9(l 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 ga7u qnl.ip9 tj/ hg,b2p,u g(tzs undergoes the reversible cyclic process (ABCA) shown in the PV diagram. Process A →B is adiabatic. What gt/7(. qu,9p2gpljb,nht z iu is the efficiency of this engine?



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