15.25: A gas undergoes the unusual proces;ell a 05cilec:q//j hs 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 p:jv);8 jot-agbwu osjf2i0; yressurized cylinder, the stream of gas feels cool. Thisf;tj jisoog:yj; u0w-)2 8av b is because

  94.35: A gas can be taken from state a to c by two different ra-*ntycf q x )2h3wdm5sk1jv/m1 l y7seversible 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. During the process a→b→c, 25.0 J of heat are added to the system. How much work is done by the syd-xqty71m*5w 1c3j2m/vn)af ylks h sstem during a→b→c?

  06.26: In the Pressure versus Volume graph shai-nc6b267ekm ;16 r0wiq wrj7 htkswown, in the process of going from a to b 60 J of heat are added, and in the process of geqw 6sj rw ah ti6;0-2i716 cnmkb7wkroing 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 iyh attu8p/ry5 ju:h0*sothermally compressed:

  97.15: Which of the following is always true for an isothermal process of9hhiv i,2( lo2a,icsi 7+fyol an ideal g7hvh fyooa2 si 2il c+l,i,(9ias?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansio qy 9g:8x-qfsfyj6 3az s29fshn in an enclosed container. Which one of the following y q2:g9z sys8jfxf a6f9qh3-squantities associated with the gas has a value of zero?

  09.33: An ideal gas undervxj :/gs6ng gfr00ds4 /n 2xhrgoes an isobaric expansion followed by an isochoric cooling. Which of the following statements must be true after the gn/g:2rns64 xg hvf 00xjsdr/completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobari wi/uci:p1a:;l m/ satc expansion. In the process, the temperature of the gas increases from 300 K to 500 K. Which one of: tc//l ;:iau1 mpwais 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. Duriw pu/ mw6m/h/vng the process, the gas performs 80 joules of work on the surroundingwumm6/p/ h /vws. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric pr,mllmw40-byw ocess on an enclosed ideal gas in which the pressure decre b4lwwmy,- l0mases?

  15.47 One mole of a diatomic ideal ga n*.yz1pyc/ kmn75tncs undergoes a reversible adiabatic process. The pressure anctkm 5ycnp. n/yn71z*d 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 identi1 494qfxr tm- cdy nm63sbiq4/dyi1npcal 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 qifimp1s9y qn4m3c bx6t/d4 nr1d -4 ygases 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 showummb q1s5 :l**z1xdicjkr g1 6s 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 (j:dmr smu1 6 k5glx b*11iqzc*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 an ideu6q 52 gctug.ral gas, which one of the following reversible processes has tu 2gur5gqc6t .he most heat associated with it?

  04.45: Container A has a sample of monatomic ideafj,.g nj9l w):tehu7i l gas, while container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume7f jgi9nj: )ul ,etw.h, 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 ideaawwbc:a6g5 ll + -37r znhr7iyl gas has pressure P , volume V , and temperature T . Which of the following processes would result in the greatest amount of e -aw6zy a57l :wrl3gh7+nicbrnergy added to the gas from heat?

  13.48: Two identical samples of a mondqkqc7/6n ysv 4 9tp/jn.yir6 atomic ideal gas are to undergo reversible processes. Which one of the following choices is a corrv yksjc6qq p7.dt/ni r96y n4/ect statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling