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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 Carnot cyxaj f7)bkphd5 ojl;g n6ky *vd.4o h-*cle shown in the f. *an-kf7bjo;6ov lgdp hhk5 *d)j4xyigure. 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)0j dez9m6 ;4jqyxx-sn efficiency 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 energqf2l3qjr 1(qhy and performs 50 J of work in each cyc(qr31qhfj ql2le. 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 operates betwee 6cjsop+y- r+khp243n-dfnpc n 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 muss/0x4/w01d rdqo wed1f 1uhly t operate 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 the wml*q z vgb;9gl3 zwivb3*)3qporking substance for an engine that undergoes the cyclic process (ABCDA) shown in the PV diagram. The processzzi9vb*gl q3m* qgvlw3b p;3 )es 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 isxob8d gq,bxk2m*an ,k /5mr t1xrd 0l; the working substance for a refrigerator that undergoes the cyclic process (ABCDA) shown in the PV diagram. The processes are all isochoric or 0l dr8 bnak/mqrbkxx5t *, g2dm1,ox;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 ides/2yqsfe0.0e, ucjpgzjoj4s s5- ;ival gas undergoes the reversible cyclic process (ABCA) shown in the PV diagram. Process A →B is adiabatic. What is the efficiency of this engine?i5 s2oujp0f e. s/e0zg vjjcs-s4;y ,q



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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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