15.25: A gas undergoes the unusual r,i -lc 7qcgpy( u vk/1jivl.8q:p ;gcprocess 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 stream of gas:ukfez3h n +tp4jo sh70t5sf1 feels cool. This is bzj s04khtp7sfeuth+of 531n :ecause

  94.35: A gas can be taken from state a to c by thh:x: +-kpjxzwo different reversible processes, a→c or a→b→c. During the direc jkxh :x-h:p+zt 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 frit3ecd* r-nsjb ;) z/dom a to b 60 J of heat are added, absd* ; c-irte/3j)zndnd 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 isotherm+1gm:m nt+ tpjally compressed:

  97.15: Which of the following is always true for an isothermal process of a.v, )kt1p-x mz rtn(ran ideal r n.p z-avxrkm)t,(1tgas?

  13.31: A monatomic ideal gas und-rr2, ,sro510m iim;ln m omj.5uj .qqxw*yfpergoes a reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value of zerwm5jfror.ys m5,mq n i*0o.iup mj ;q, l2x1r-o?

  09.33: An ideal gas undergoes n,r7z l kcxrn.m0+n c:+v4hloan isobaric expansion followed by an isochoric cooling. Which of the following statements must be true a c0,hxz+crmn :o.llv+n74nr kfter the completion of these processes?

  11.44: One mole of a monatomic idew,m/n ym8c c+eal gas undergoes an isobaric expansion. In the process, the temperature ofm+n c/8wm,ce y the gas increases from 300 K to 500 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 undergoes an isobaric process. Durin1z6-ki1d c rhz a,djy.g the process, the gas performs 80 joules of work on the surroundings. Which one of the following s1j1kdy -h i6,z.adzcr tatements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process:gyulg2p (yp) on an enclosed ideal gas in which the pressyg (gy p2p:l)uure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible a bjxdq8v1k)l 2diabatic process. The pressure and volume initially are gx1j)bdl 28k qviven 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 surroundings?

  03.48: Two completely identical samples of the same ideal gas are in equal voluji20opm 8z+a b7 d+ 5iu1g/llstyu*jxme containers with the dpxa2t+g l7/iz l1sib*5uoj0 +jyu8 msame 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 possible reversible n:k-,, z-c4zi flcdvpvf43il processes performed on a monatomic ideal gas. Process A is isobaric n ic- vl pkc3 -zl4f4,i,:zvfd(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, Vq yf (5yp(skjlda* m-9, and T for an ideal gas, which one of the following reversible processes has the ma(q*ypds kf59 (lmjy- ost heat associated with it?

  04.45: Container A has a sample of monatomic id zn* oc:g l2- 6j +zhby2ayjol-8mr6yleal gas, while container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, vol2ohryll6*jyz8 m 2jn b +:-azc-yo6lgume, 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 , vld pd,ads, 5b)olume V , and temperature T . Which of the following processes would result in the greatest amount of energy added to the g),d 5 ,dbaspldas from heat?

  13.48: Two identical samples of a monatomic cg 15boxx7r; .oq 2kl8so o3gwideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated with the processe wgo2; c7sloq8r x5.o3k1obxg s?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling