15.25: A gas undergoes the unusual proces1+oy 0i 5mz*ck1qiw ows 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 cylindepzxr qx-z(u ;gf+n1 4nr, the stream of gas feels cool. This is beca1(p4u z xzg-n qxnf;r+use

  94.35: A gas can be taken from state a to 4q7 ugco l 5n1;;otq-mmhm9ejc by two different reversible processes, a→c or a→b→c. During the direct process a→c, 20.0 J of work are -9j;thqnc54ue17loq mmom;g 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 showu/ x)re 4pkwd0n, in the process of going from a to b 60 J of heat are added, and in the process ) 4uwrxdp0/ekof 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 ubo6 3i xro7m s gxa oqq5fn85;yrzr)8((kg( jis isothermally compressed:

  97.15: Which of the following is always true for an isotherz+rcbt iwg */qo98wd(mal process of an idealgt/+ 9ir( bqd*wc8ozw gas?

  13.31: A monatomic ideal gas undergoes a rever /;c/ hl o*ngid),rk)qieyj0esible isothermal expansion in an enclosedrj; ,iq/ndeo 0 cyhgi))el k/* container. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergx/pg v -.:,wbmymgmdfp v6*q :oes an isobaric expansion followed by an isochoric cooling. Which of the following statements must be true after the completi-m/xd,yfg m.6pwvvpqmb:* g :on of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansioc -m wu:slaag7pf39p(; 6zq jnn. 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 done by the gas onl cwz:(9aupn63ga7-;jfq smp the surroundings?

  14.46: A monatomic, ideal gas und2dqdvyhx *- mh/v.ay m0n 5h:sergoes an isobaric process. During the process, the gas performs 80 jouvm- ya*ds hmxqd5/n20y vh:h.les of work on the surroundings. 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 enclosed ideal gas in w47vr j;l;2b1* b6 bfbealmu,gq xfk b5hich the pressuk26ul4r1xj5mgv;*,bbf lqab;eb f7bre decreases?

  15.47 One mole of a diavmz9ry i kujbi0i3p :i2/q)y) tomic ideal gas undergoes a reversible adiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the volume0)3b i q)j:/mkiiuryyp9v 2iz is halved during the adiabatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical n.a,c+*udzc uo7,f 8j*heaah m8: zslsamples 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 gases in containers A and B, which is at the hicoa :l78zjduua,* f8 zsmn ,h ae.h+*cgher 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 l qsn *7r p k+t 0.ap)u541bpdral/cupshows four different possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constantar*t 5sr lpk1bq)pu 7 4ucd/+apn0pl. 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 foe,h nnfzv;xlenei1ga , ap/ n1+69/zir an ideal gas, which one of the following reversible processes has tp,exzen+nhav elg/ iniz,1an1/6;f9he most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while cyy9/qwy/0um fn7k fb0 ontainer 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 a reversible adiabatic process that cuts the pressure in half. Which sample of gas is now at tbw 7f/q9ym /nk 0y0uyfhe higher temperature?

  08.44: A mole of a monatomic qy8g w )6w9**q :2 9p(vyqbrt6vdh6ze y rsmznideal gas has pressure P , volume V , and temperature T . Which of the following pro 6rzq b9rts9y2wvqy hv z6*e)pwd g*nqym:( 86cesses would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical hc7 r1cry3lt q0fp33s samples of a monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated with the pro 3rp ty7hc031l3sr qcfcesses?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling