15.25: A gas undergoes the unus );bncy.+ q+)3f uxhjtq v7ttiual 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 cylin/)4myo aekzk 2u(3ne dder, the stream of gas feels cool. k42ayke/me3do ()nzu This is because

  94.35: A gas can be taken from state a to c by two different reversible procesm(phr82d f i*vses, 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.p8hd(r*fi2 mv How much work is done by the system during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the prj o-k:h(:rlt8q q;vi 3-by vbtocess of going from a 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 going a to c to d, wh:qkv: jb ;ov-q8 (3tbtlyrh-iat is the total heat added?

  96.22: When an ideal gas is isothelkc4ln jlit2m73 a as1q5,s6nc4ihx.rmally compressed:

  97.15: Which of the following is always true for an isothermal process)dgxdxj7 w/upv4w;bkv 9z2 6j of an ideg;zjxv9 d kwd xuw7pv4j2/6b) al gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expans rmwqwnma;v m). ,b;x,ion in an enclosed container. Which one of the )n .,;mb;vmr wamxw,qfollowing quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergow9.uttr 4wety-* f unmtg50g kz2)y9ses an isobaric expansion followed by an isochoric cooling. Which of the t nwm9r)kf-t02s*y y. 5z9eutwt4gg ufollowing statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas underzi q-nmro *- 67q.jbdf*0ehswgoes 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 do7nrh- bf iz6sm 0w.*-qqe d*jone by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoe)2ol a stdw-c1s an isobaric process. During the process, the gas performs 80 joules of work on the surroundingd1cotals2 -)w s. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric proces*ka8p 2b4ciuq8wam b 7s on an enclosed ideal gas in which the pressure decre 8pq*27i cbaub8kam w4ases?

  15.47 One mole of a diatomic ideal gas gl 7oaj 7iqm(c .sm1,jf -4sufundergoes 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 sl -uo(7mcfi4j7j .a g1sfqm,surroundings?

  03.48: Two completely identical samples of the same ideal gas are in equal bi*0- kqet/o+xls(kh volume containers with tl/ itk(0kobs+ -xe*q hhe 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 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 xzyz- *h byruz ht82+37hyfv :shows four different possible reversible processes performed on a monatomic ideal gas. Process 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 temperatu-f: u2tr3h +*yhz8 vz7zyxhbyre of the gas decrease?

  16.48: From a given state of P, o6x2i 8b2bbtc V, and T for an ideal gas, which one of the following reversible protc8bxb62 bi 2ocesses has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while container svcffr09+ c)x B has a sample of diatomic ideal gas. The two gases start with the same initial temperature,xrf0 +vcf 9)sc 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 ci)ijp:jcx.fb0u( 9v 6xf*n h, volume V , and temperature T . Which of the following processes would result in the greatest amount of energy added to th)0xvx ( ij h j*fui:cp.69fbnce gas from heat?

  13.48: Two identical samples of a monatomic ideaf f6g9tkvoccw-44 n3 al gas are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated with the t nfc3c kw9fo4a-v 64gprocesses?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling