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?

  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

  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?

  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?

  96.22: When an ideal gas is isothermally co6v;cu s, q;ir( ;iprvcmpressed:

  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?

  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?

  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?

  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?

  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?

  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?

  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?

  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.

  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?

  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?

  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?

  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?

  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