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习题练习:1 st law of Thermal Dynamics



 作者: admin发布日期: 2024-08-04 20:40   总分: 18分  得分: _____________

答题人: 匿名未登录  开始时间: 24年08月04日 20:40  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  
  15.25: A gas undergoes the unusual proceytawcn f54w90f6h-x kss M $\to$ N in the pressure vs. volume graph shown. Which one of the following choices properly represents the signs of the internal energy change of the gas $\Delta$U, the total energy transferred as heat to the gas Q, and the total work done on the gas by the surroundings W, for this process?



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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.28: When gas escapes from a pressurized cylinder, the stream (or:.4hzdp(fihz v /kof gas feels cool. This is becausv(hdfz(4/ r:p.z hki oe

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.35: A gas can be taken from state a to c by two differenl g5 +q*wt: glnt,e2yzt reversible processes, a→c or a→b→c. During the direct process a→c, 20.0 J of work are done by the system and 30.0 J of heat are added to the system. During the process a→b→c, 25.0 J of heat are added to the system. How much work is done ,*g5etlwy lq n+ :gz2tby the system during a→b→c?



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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.26: In the Pressure versus Volume graph shownnyyih+w-ypve 3 :)-qs, in the process of going from a to b 60 J of heat are added, and in the process of going from b to dw)y3qh-p y i+ snv:y-e 20 J of heat are added. In the process of going a to c to d, what is the total heat added?



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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.22: When an ideal gas is isothermally co6v;cu s, q;ir( ;iprvcmpressed:

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.15: Which of the followwwow sj(7n30n7 ma4s ping is always true for an isothermal process of an ideal jnnao(7 psw 74ww ms30gas?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.31: A monatomic ideal gas undergoes a reversible iss- d8vt((sz sh48ajlxothermal expansion in an enclosed container. Which one of the following quantities associated with t8ds- hvsj8 tazl(sx4( he gas has a value of zero?

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.33: An ideal gas undergoq1656pka dauw(c sz7o es an isobaric expansion followed by an isochoric cooling. Which of the following statements must be true after the completion of thesa6 akwc(5 zo 17dqsp6ue processes?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  11.44: One mole of a monatomic ideal nemvrlgtk)5 . hqe3/5 gas undergoes an isobaric expansion. In the process, the temper5eqt3n) hkle vmrg/5. ature of the gas increases from 300 K to 500 K. Which one of the following choices best represents the amount of work done by the gas on the surroundings?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  14.46: A monatomic, ideal gas undergoes an isobaric procehddjy/+5zz0 7*-bc pia*y jlvss. During the process, the gas performs 80 joules of work on the surroundings.jb iy cj5pa7h*ldz+v- 0*zd/y Which one of the following statements best describes the heat exchange during this process?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.40: Which is not true of an iau+n8l dn0q y *qv3r.jsochoric process on an enclosed ideal gas in which the 8n3+jndqvq y0lr*. au pressure decreases?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  15.47 One mole of a diatomic ideal gas unde3pabmj.0)znp rgoes a reversible adiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the volume is halved during j)mpa.nbz p 03the adiabatic process, how much work was done on the gas sample by the surroundings?

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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.48: Two completely identical samples of the same ideal gas are in n)ue65yx4xklgv+/ w n0fduo7equal volume containers with the same pressure and temperature in containers ly6f klxug 0w5u4nv)e+ 7dnx o/abeled A and B. After the processes are performed on the gases in containers A and B, which is at the higher temperature?
The gas in container A performs non-zero work W on the surroundings during an isobaric (constant pressure) process before the pressure is reduced isochorically (constant volume) to 1/2 its initial amount.
The gas in container B has its pressure reduced isochorically (constant volume) to 1/2 its initial value and then the gas performs non-zero work W on the surroundings during an isobaric (constant pressure) process.

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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.38: The PV diagram shows four different possiclk 5:49,cmoszbmf2ik pcl 3)ble reversible processes performed on a monatomic ideal gas. Process A is ,)c2z c c9lbf43mpms:kk iol5 isobaric (constant pressure). Process B is isothermal (constant temperature). Process C is adiabatic. Process D is isochoric (constant volume). For which process(es) does the temperature of the gas decrease?



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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.48: From a given state of P, V, a47dqxxa /u-;tj w u/bknd T for an ideal gas, which one of the following reversible processes has the most heat ass b-ju 4k;ua/w dqt/7xxociated with it?

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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.45: Container A has a sample of monatomic ide)xhopu c 2j:/e.jl0 zhal gas, while container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, pressure, and number of moles of molecules. Each gas now undergoes a reversible adiabatic process that cuts the pressure in half. Which sample of gas is now at th c pol/:2jjhuz.)xh0 ee higher temperature?

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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.44: A mole of a monatomic ideal gas has pressure P , volume V , aq rprs; kp/;ud*r+e9kyqa:o) nd temperature T . Which of the following processes would result in the greatest amount of energy added to the ga)9ekqpyrku;; or/* pq:+rdsas from heat?

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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.48: Two identical samples of a monatomicre.i6dvxb1s 3c rv2j3 ideal gas are to undergo reversible proc b6rdvcvxr1e33.2 jis esses. Which one of the following choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling

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