15.25: A gas undergoes the unusual pren7b*jlhult um:gz 5ccbqs +i4)w7 /8ocess 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 escadsikul,nes 8i9g2,vx *rr5 9d pes from a pressurized cylinder, the stream of gas feels cool. This is ,8ve5i9dg*n lisu kr2 9,xsr dbecause

  94.35: A gas can be taken from j /ghjin -2hz9ob)q76*d- ilvxq t6uestate a to c by two different reversible 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 addexhjinvoh t6-q2*q9- d6iz/)7uljgb ed 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 g0wj* ljz6ias 5+ou ,uqraph shown, in the process 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 area *+ousiq50zl uwj6, j added. In the process of going a to c to d, what is the total heat added?

  96.22: When an ideal gas is isothermally compressed:yvv;dk/+e- c.q1 cxs g

  97.15: Which of the following is always t ztz8u5ul*a)o rue for an isothermal process of an ideal u*l)8 aozt 5zugas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansion in 4i q qyrlj,;2x.n4ncian enclosed container. Which one of the follow2.i ijy4x ;r4nlq,q ncing quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed vlamh n9k(.ci3k7 +lek6c c /i)lnj-z by an isochoric cooling. Which of the following statements must be tr9) c h+iek.(vk6ikj -ln7a lc 3mzn/clue after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric exz4:gk tu;biw )pansion. In the process, the temperature of the gas increases from 300 K to 500 K. Which one of the following choices bestw; b ik4gz)u:t represents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. During thesjva r,-*fsd j(pa( 1q process, the gas performs 80 joules of work onrjq(*,p sa svf-(1a jd the surroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not lwo taak:*+*ltrue of an isochoric process on an enclosed ideal gas in which the pressuaolk *tw* :al+re decreases?

  15.47 One mole of a diatomic ideal gas undergoes1oa lq;crvt g1+bcrec0 6++qv m y8i:d 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 lr6 om 1 ci:08d qv1re+c+ba+ctqy;v gwork was done on the gas sample by the surroundings?

  03.48: Two completely identical samples of the samlb8u pt62 c4nl89 pncee ideal gas are in equal volume containers with the same pressure and temperature in containers labu82 t ncbpe96pl8nc4leled 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 possibbz7qvzkk-99n5r l-ep nmp1 k5 le reversible processes performe5-n7z1vkkempnr5p99 - qlkz bd 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 temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an ideal gas, which one of wj e1aqw.rm6 dq61w3j the follow .aqd113rw j 6e6wwjqming reversible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, whileg,(.r3;cpi t grgs zh nk4hy;+ container 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 cut3nzi+yrpk,th .gc;gs(; hg4rs the pressure in half. Which sample of gas is now at the higher temperature?

  08.44: A mole of a monatomic idea zz7cy4y j c((v3 ),v;p:kt mpjimis1hl gas has pressure P , volume V , and temperature T zkphcz j), i yit1j;y(s37vpm: 4(c vm. Which of the following processes would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal3 (cdhx k/y9e 8zdk4km gas are to undergo reversible processes. Which one of the following choices em8dh(/xcd9kk3yk 4z is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling