15.25: A gas undergoes the unusual process M + vxkig* zsc-x p1a-s($\to$ 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 $\mathrm{\Delta }$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 escas d 8xn4w6syu*7w7ja jpes from a pressurized cylinder, the stream of gas feels cool. This is because*s47uynsx7 6 8wj dwaj

  94.35: A gas can be taken from state a2 sz5unyg-ugze/ -q d2bm(l r77k, lgq to c by two different 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.l/7g(zl2u-kng -d2zsu q5 eb 7gm,qyr How much work is done by the system during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the procerwx++m)z qda4w*2l f:yv j7mass of going from a to b 60 J of heat are added, and in the prjr+f)mwaavzdm:4 wyx*2 7l+ qocess 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 isothermally comprid / f4qa)xa tfnss ,095rc5poessed:

  97.15: Which of the following is always true for an isothermalt u ob)jqubo7p40va0; process of an ideal g;7ouov ) 00tbab u4qpjas?

  13.31: A monatomic ideal gas undergoes a reversible isotu0g 4fve++ ce p:sprk,hermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value of zerersg40p vc++eu,k f :po?

  09.33: An ideal gas undergoes am;c8 z o4 d/9q12sskx*saregfqm b0+bn isobaric expansion followed by an isochoric cooling. Whi0srxmdm1ob/*bakef94 2qc gs +8zsq; ch of the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. *6bebhk7:5sqmo1tas 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 thos 6*sh1bbemq:7tak 5e gas on the surroundings?

  14.46: A monatomic, ideal g/p8shd2;coue 9tcwp:sros8523p o a tas undergoes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat exchange during this prou d9cos2o sp8t ch;ea3:w/8 pt2 ps5rocess?

  07.40: Which is not true of an isochorzf9 *8/u iydpnic process on an enclosed ideal gas in which the ipu8zyfd n*9/ pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversi lk3k2 faph-q8k z3q3r0vcy:hble adiabatic process. The pressure and volume initially are given a ah:0q32pz3q-3lrv 8fkkyhkcs 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 surroundings?

  03.48: Two completely iden.jp+ mcb+ m9i8:y ghaftical samples of the same ideal gas are in equal volume containers with the same pressure and temperature in contain+ mmahi8.pcy j9+f: gbers labeled 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 ihd,( +0mg fzmd pt1w1different possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process C is adiabatgd+,mwh 1t0dp(1 zfmiic. 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,/4yr5bxvqo b ,kwu*feq u 8)d, and T for an ideal gas, which one of the foll b,vfb5o8w y)qdu*qkxu 4re /,owing reversible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomir a* gpqbel/+ii 70l9hc ideal gas, while container B has a sample of diatomic idealq*+ rli90agl/7p heb i 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 the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure P , volumt/3qh r7t ,eyijw7gf)a n3v6de V , and temperatuyrt6i 7)3jfv/taqne 73,h dgwre T . Which of the following processes would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to undergo reversible -do jwm ap *jns5y3y6iq o.(cyx6pa(0processes. Whichcj n ax -yq 0apwopoidsm6.( *j(3yy65 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