15.25: A gas undergoes the unusual proc*tr0iff;u.h l *wa)ra s 7hg.iess 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 pressurizedi,201kds +ssuokr jgp. 68j bh cylinder, the stream of gas feels cool. Th ks.oj 6gkr8su1sj2+ip,hb 0dis is because

  94.35: A gas can be taken from state a to c by two different r3typm;pg+ wr+eversible 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→;t 3++ wgppmyrc, 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 from .e3+ dufnu; epa to b 60 J of heat are added, un p.+ 3e;fudeand 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 2 .e4/lzu.qqxb+ h3an/jafn;j 8 yjigisothermally compressed:

  97.15: Which of the following is always true for an isothermal prozt2i2a tau i0k5 s-h.7 ujv,kmcess of an idet a-ii0su5kukhm,a2j . 2zvt 7al gas?

  13.31: A monatomic ideal gas undergoes a r9 nmwo6v:w dz/4 xogh86h eso)eversible isothermal expansion in an enclosed container. Which one os49m)no:de6 ox6vh ogwz8w/ hf the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isochotalon7-.gd0pnly c/ ck vo1 2,ric cooling. Which of the fo,v7lk ogp tayo-2 ld ./10nccnllowing statements must be true after the completion of these processes?

  11.44: One mole of a mon8l3gegy/a /cb atomic ideal gas undergoes an isobaric expansion. In the process/gbyc8 egl/ a3, 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 on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isoba *rm.tcc xr,5fx0af *gric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the followin c tx0*fmf*r,cxa5r g.g 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 whid0fp:0 x7g ,q yeo hv5*orc/5 m:urdprch the pressure decrh:/,cq:odu05my e rr*05vo 7xgpp drfeases?

  15.47 One mole of a diatoy.socb rk8d,5,fe8/h 3y.xxhkx x c3bmic 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 volume is halved during the adiabatic process, how much work was done on the 8yoc /.xkfkx dxcs, bx bhy3835he. r,gas sample by the surroundings?

  03.48: Two completely identical samples of the same ideal gas arl(o ybf3*lssvh : -zu g6,k:mse in equal volume containers with the same pressure and temperature in containers labeled A and B. After the*z6 3ohy u f:s s-bgsvl,(l:km 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 shj-tn 635x bw. b-pqieeows four different possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isbb-xe6e.3 jni5t p-wq othermal (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 g dro2ov 4s7rx:as, which one of the following reversible processes has the most heat ass4r 72v ord:xosociated with it?

  04.45: Container A has a samu) e bh6mrwoxqf bg/ wo21v0(1ple of monatomic ideal gas, while 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 cuts the pressureou 6w2ewmofbqghb0 )(xv1 r/1 in half. Which sample of gas is now at the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure P , volubm:p1 7 zfvc8lme V , and temperature T . Which of the following processes would result in the grb lpm 1:vz78cfeatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to under0 w2lvr:t5ggd go reversible prg0vr wlgtd2:5ocesses. Which one of the following choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling