15.25: A gas undergoes the unusual p1l+; hsf ted y77+ww gs)3he/ezfe4w trocess 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 frq/5w 9-bbot hv huilco3p a 5n83jdr;*om a pressurized cylinder, the stream of gas feels cool. This is be3h to3o5 ib*jd rh a/b5q;c-v89 plunwcause

  94.35: A gas can be taken from state a to c by two different reversible ;j1m mig9 kcs/processes, a→c or a→b→ c k9;jsmm/i1gc. 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 by the system during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the process of going from arvsuh/7 xe pp2rsy6 17 9ns3fb to 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 goin37sx1yvpr/9 6sfb7 uehp2s r ng a to c to d, what is the total heat added?

  96.22: When an ideal gas is isothermally compressed*j ljkgy3drw-o,;7 bzld x/2d:

  97.15: Which of the followint2 cr2rdq t,z 73lae8fg is always true for an isothermal process of an idealltecaqdzt8 72f23rr, gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansiihm +oh88z / ,xki pa/70e9 fkwtiqsc5on in an enclosed container. Which one of the following quantities associated with the gas has a v 0ksi589/+oh7 8tiafi zqxkp/ , cmehwalue of zero?

  09.33: An ideal gas undergoxik1g./vbkka/ + kgq5e; ukmk4 u.( eies an isobaric expansion followed by an isochoric cooling. Which of the following statements must be tru.k(k vue ki1;xiq/.5kb kg ae/+4kmgue after the completion of these processes?

  11.44: One mole of a monatomic ideal gas uw /-r+b)vrb0o(lg03ud/l b ozmdru,tndergoes 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+gbvr3moodbdurz 0t/ ,r0/b )lu-(w l the gas on the surroundings?

  14.46: A monatomic, ide,ju,v3v xx)wk/r8n h:ezj0 c nal gas 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 ) zn83c v,,r:vjk whe0xuxjn/ heat exchange during this process?

  07.40: Which is not true of an isochoric 3 hfw vg,j;ll9 cmu,d+process on an enclosed ideal gas in which the pre93+udflcwljh,g , vm;ssure decreases?

  15.47 One mole of a diatomic ideal gas undergoesfcne5fu+:um 6enb3.v l l.ew+ 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 we cf wvln.leeunb5:u3mf. +6 +ork was done on the gas sample by the surroundings?

  03.48: Two completely identical samples of the same ideal (rpfo8o oskq8. ua92k gas are in equal volume containers with the same aok8orpuf (so.qk892 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 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 possik.;8a.+e;cm guhh xj hble reversible processes performed on a monatomic ideal gas. Procx8+. e;mg. jh ahkhuc;ess A is 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, and T for ac :3b b)lhm0yxtdo*1pn ideal gas, which one of the following reversible processes has the most heat associated wit)hd xy* 0lcpb3mot: b1h it?

  04.45: Container A has a sample of monatomic ideal gas, while contai sq35kngqoac 9u0w-,tner 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 0cka- s q3gqn9 wu,o5tthe pressure in half. Which sample of gas is now at the higher temperature?

  08.44: A mole of a monatomic ideasxln* nl6kv41 l gas has pressure P , volume V , and temperature T xllvsk n4* 16n. 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 g gay9ri3xu 43gas are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated with the 4ugaxyg3r 39iprocesses?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling