15.25: A gas undergoes the unl7f z3 v:s(zvjtvt5a .usual process 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 :nat v. 6bvck+3;z l6paic2db, the stream of gas feels cool. This is bit362k cp6d:b la;.vzn c vba+ecause

  94.35: A gas can be taken from state a to c by two different reversible prus*,pec6h/ omz ww6mn2 j uq7*ocesses, 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 adwp2uc sm q6*6n*w/oe umz,j7h ded to the system. During the process a→b→c, 25.0 J of heat are added to the system. How much work is done by the system during a→b→c?

  06.26: In the Pressure versuslor2b);dwfwwqua u ez-s7:h1 h+g-1s Volume graph shown, in the process of going from a aw)-d:s21h +w7lh 1z-s;ruq w gofeubto b 60 J of heat are added, and in the process of going from b to d 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 isothermall9is +mowwie /,/sr-bgy compressed:

  97.15: Which of the following is always true for an isothermal pe(c5 6jb 12d :aznq(okaqrc+cv3 m/nfrocess of an ideal gasr:(ko3qczn qajm bfcce/ dan62(+15 v?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansion in an fs07u)xa2athx w3. b0: dv quaenclosed container. Which one of the following quantities asso bf vu sq.x0h02 ):ada3atx7wuciated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansios8lq2pnwsij c c*wp 1a5:d3f2n followed by an isochoric cooling. Which of the following statements must be true after thsn5 cc2pwjps1dq3 i:2 lfa8w*e completion of these processes?

  11.44: One mole of a monatomic ideal gas undergo2d r ,fqmeg oqbt1;.;qes an isobaric expansion. In the process, the temperature 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 qg.r;tbq1o dq2;f em,gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes n 3k- gucg(ny+an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the cg+3 n(un gk-yfollowing statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclosed ideal gas i6h8k1pj s* jwon which the pressure j js1hw*k68 opdecreases?

  15.47 One mole of a diatomic ideal gas u9jyt ra 8/ma ;g(sbcr0ndergoes 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 the adiabatic process, how much work was done on the gas sample by the surroun/t ac8 yr90sa;mg(b rjdings?

  03.48: Two completely identical samples of the same ideal2mdr1wb3jdes9i 9vv4 gas are in equal volume containers with the same pressure and temperature in containers labeled A and B. After the processes are performed on the gases in containers A and B, which is at the higher temperatu4d3v9r92bj deiw1vm sre?
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 possible reveg .uy)vsn 93a yj4wi6nrsible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process C nvsa4 iw36)guny. j9y 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, and T for an ideia* lnl z *67esvgl0*now+; mral gas, which one of the following reversible processes has the most heat associate70zg+al lm vr *soi6w*ln e*;nd with it?

  04.45: Container A has a sample of monatomi9 /ety1hsif)f c ideal gas, while container B has a sample of diatomic ideal gas. y/9 1is)hftef 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 the higher temperature?

  08.44: A mole of a monatomic ideal gas hak x 88lseeu;y9c wh 1y*u4a2ifs pressure P , volume V , and temperature T . Which of the following processes would result in the greates;wey*18uaxc4sk9iy ul2 f eh 8t amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal g3 a4y*)dr a g.uzfqeq9as are to undergo reversible processes. Which one of the following choices is a correct statement abou f9zy4*.ra)q3dg au qet the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling