15.25: A gas undergoes the unusualhm /4g*pgxe x, 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, the streamvd/.f mx1ziz3 of gas feels cool. Th1mdf z.vz/3ix is is because

  94.35: A gas can be taken from x ),nu rvfyh8 )f+bci7state a 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. yi uf)fcv8r,7h + )xbn 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 z1owl+25 e3mxd c2r;gvnm j6cprocess of going from a to b 60 J of heat 23ej n5dl+rwxccm26zvm1g ; oare 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 vfp )9;l4t2lhet9 ob k -qu4o3pcdle)gas is isothermally compressed:

  97.15: Which of the following is always true for an10wzlv iar :pn, )x(qn isothermal process of an ideal0 v),wn a( nzpqrx1:il gas?

  13.31: A monatomic ideal gas ui:upmllu87:kh k)n 0 andergoes a reversible isothermal expansion in an enclosed container. Which one of the following quantities ass kkha0il 8uum)nl :7:pociated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion mbkx+hxch-9s/ dc 8e9followed by an isochoric cooling. Whmxb+ds-x 99ckhch e 8/ich 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 zfjn;)p ftfum+,vjn:m68,y q2 dyc e4expansion. In the process, the temperature of the gas increases from 300 K to 5m; +: ff62yjfytnc8j4, ,z)qnde p vum00 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 under3uj 0 7 v+aaykp.- nb0bjqs/dlgoes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of t abp 0/ 3+qj-.0unyldjskva7b he following statements best describes the heat exchange during this process?

  07.40: Which is not true o s5whc/s;:0glrm e gi4f an isochoric process on an enclosed ideal gas in which th;hge/: 45gsw0sl rcmie pressure decreases?

  15.47 One mole of a diatomic ideal gas undergo0 m*j c.l6 c,459q hmtd/sb-hmnvcp foes 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 4*vlcq m,9c0ft c pjom5h.- h6dnsm/bthe surroundings?

  03.48: Two completely identicav y 4foc 8;h;)5cen.joh gb(cxl samples of the same ideal 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;4g ojcc8xef oyc.5 hhb(v);n 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 differenbrx: 97ay9o7mgsb1o b t possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). P:b9 o m9br1o7a7xsbyg rocess 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 fo yt8av /2,2qkao wk/5ykrn1psc0 :etzr an ideal gas, which one of the following reversible procs:a,p51kqkkzytn/ a/0w 2 o8vr 2yt ecesses has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, wh37;q cenr28cf(al m+:m r mh6p:icd smile 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 r7mm6m(spn h:qaef rcim3c;2 c8:+l da 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 , vo6r nilcp+:urx.*rb uz(u )w6flume V , and temperature T . Which of the following processes would result in the greatest amount of enerfur. blwruxz *u c:ri6)6+(pngy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to undergo reverpqt6er5nx*k k1 +, myrsible processes. Which one of the following choices is a correct statement about the heat associatrx +6ep1trmy *, q5knked with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling