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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 iswb8k6d:sd mhogt7x y8hk o:(; used as the 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 expelled by the gas durytho:k8x: d87 ( b; dks6hmwgoing 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 engir,**dgbg v:ufciexw . h:6n2one 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 perfor *dj3/ gemu+nn9r e;xbms 50 J of work in eebejngd n mu9*r 3x;/+ach cycle. What 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 operatek+.e+e;ht q9 .lm 2bs 9 rg*ipih6wfxws 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 environmef ogptjfio 4e zy7 /+y57x9.qfb. uc0wnt 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 substanr q5i/cfufn)fo32l2y + ht7 )mhkv)zpce for an engine that undergonft+i /cuf2pklzvmhrh3 o) q 7)25f)y es 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 g0,aj01jj zzh zas is the working substance for a refrigerator that undergoes the cyclic process (ABCDA) shown in thz ,0ajjzh 0j1ze 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 undergour 728 bpn;t2umhx kg dg9ziqh-4n31k es the reversible cyclic process (ABCA) shown in the PV zmhgrktidbu 82 p-g9 13q ;xh 27knn4udiagram. Process A →B is adiabatic. What is the efficiency of this engine?



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