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习题练习:Efficiency, coefficient of performance and Carnot Cycle

 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 t yk c;s2kxqh-h/k(2e/ma8w lj he 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 gqkm8k-csyl/h2;2( jxeakwh / as 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 operating g w ls2(aa+4.zqusa)w yy4 ox2between $600^{\circ}C$ 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 v)fjnbb1s, xvi x3h-5 200 J of thermal energy and performs 50 J of work in each cycle. What is its effi x-,i 3bbs 1jvxv)nfh5ciency?

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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 operatea2 i0/2 dmjcys)nl hn1+avt0hs between 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 ishpb eh0e*9ype/ db0jmu: kf(8 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 axn,era9h/h (n n engine that undergoes the cyclic process (ABCDA) shown i (rh,9neaxh/ nn 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 1;w, 3mg7qo:boulfu. phcd g7working substance for a refrigerator that undergoe ,o3d w1f:hlgmpo bcg7;u7q.u s 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 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 cycb)xc e2hlit1q 8 yf:jv0t8p:ulic process (ABCA) shown in the PV diagram. Proc1 0:)bxt:p2vhci8e jluf qty8ess A →B is adiabatic. What is the efficiency of this engine?



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