15.25: A gas undergoes tm7 jdsk4ppwh /+5j6pwhe unusual 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 stream of r l9gt ica9cm:f;. ,usgas feels cool. This is becausau.m t:c;sg 9rif9cl ,e

  94.35: A gas can be taken from state a to c by two different reversible proc:)9 wjf ss,- eug3s7v3uzkyjjesses, 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 are7zj :fvejskj3 y-)u9su w3 ,sg 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 shownhh l3 emsnh9a) ,ub-yn6)ciu;, in the process of going from a to b 60 J of heat are added, and in the process of going from b toms uhhahyl nu;b6i3)c- 9e,n) 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 isothermae)gix7bv4y r6y6854/ f kp:ordj jdbully compressed:

  97.15: Which of the followingt47x5uxxxq *)ho b jf0 is always true for an isothermal process of an idealt xqxh uo4fxxj7 b)*50 gas?

  13.31: A monatomic ideall/z k*smo,9 z ,of:-imjmqw0 z gas undergoes a reversible isothermal expansion in an enclosed container. Which one of the following quan/ zzmk*9,qosfm:wo -z 0 ml,jitities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion foll5pjbqo+*o x3kp7 x zufqsm)- 9owed by an isochoric cooling. Which of the following statements must be t3) us 9qozqo*7mpxb x5fjk+- prue after the completion of these processes?

  11.44: One mole of a mona3 jlboif/5 e8u4qp,0fl 0o tiktomic ideal gas undergoes an isobaric expansion. In the process, the ti0jl,ekp oflbu5/ fq08ot 3i4 emperature of 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. During the process,d1x 8cyl wu(*y the gas performs 80 joules of work on the surroundd*(xyc8uy1l wings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclog5wy wwo -1/,+qmtfiv sed ideal gas in which the pres-/w iy+1tf wog 5wvq,msure decreases?

  15.47 One mole of a diatomic ideal gas undeseah/rzyn/ gs(aj9-x t1 7mq(rgoes a reversible adiabatic process. The p(y gx mq(t1z-srh e/a7/9jnasressure 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 surroundings?

  03.48: Two completely identical samples of the same ideal gas are in equal voluhu ; 1q*zx7xo5g ty0whme containers with the 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 temper xhqy*7u5h0gwo;xz t1ature?
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 processego ,izve+ic.m qov*2,s 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 tempev mz vg,,oc*2q+e.o iirature of the gas decrease?

  16.48: From a given state of P, V, and T for an ideal gas, which one of the fo6(d(zoy *87yojv- w rnumcdu ;llowing reve-juwco; m6v r7 y ((8*dounyzdrsible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while conw;1b vxh2j+i7b fcz 1vtainer 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 underc1 bfb+z7 v jw1x2hi;vgoes 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 , volume V ,w4 bzrr/ji -a .i,jks; and temperature T . Which of the following processeswi.ri- 4zbjsa/;kj r, would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical sax.z 6 uc(x kw /;/6gg-7:dqpfj8tczzk y3gq hemples of a monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a fxj 8gc3cdq: q;w/6gz-.khz6xtk pz/ g7( eyucorrect statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling