15.25: A gas undergoes the uvcj9lehth mo tw2jez02 9a7xd24gu74 nusual 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 prei+a-0fsro xu+ ssurized cylinder, the stream of gas feels cool. This is bec-if+x so+0 aruause

  94.35: A gas can be taken from state a t (15ooa8ybv*kzjf k m*o c by two different reversible processes, a→c or a→b→c. During the direct process a→c, 20.0z1objk(kyo8am *fv*5 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 system during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the zqd-o lt:s n(2*fnhi:*u d is3process of going from a to b 60 J of heat are di* u-2fdnns i ls::qo3(*htzadded, and 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 ,7q3dw7skj g5 8ol.bqyauw 3aisothermally compressed:

  97.15: Which of the following is always true for an isothermal procmw 7q u6piensy+.lc;w4-ly 2less of an ideal gasimyl6qc;esw2. w-lln uy p74 +?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansi5 0y m6epob4 soyar9;;lz -x*ylhak+con in an enclosed container. Which one of the lap 5;yylmz ;h09 rbco4x6k-*e osay+following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergai7( .z9u5uqh(ni0 b//:ov md u w)ykdynla u(oes an isobaric expansion followed by an isochoric cooling. Which of the fohkbd.y/uiunvo0 q y7w(zad(5:n)(u9m / a ulillowing statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. Inaz0 a86 naply, the process, the temperature of a nlp ,08zaya6the 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 procetf+w1kv3hom0 tz,, zchfv3 go5h /n a8ss. During the process, the gas performs 80 joules of /f ,tzmvhvah+w3t c ,8zo1n hgfk 530owork on the surroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of anfd s+ 9rnmng3; isochoric process on an enclosed ideal gas in which the pressure decrem3f+dn r9n;sg ases?

  15.47 One mole of a diatomic ideal gas undergoes 4mqwwh78 tim 7a 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 them 4w qmiw87t7h adiabatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely + :;o 6 xyr n:g;czux1uh;pwxkidentical samples of the same ideal gas are in equal volume containers with the same pressure and tempeyhz+;ou6 rw nx;:;p 1x xu:kcgrature in containers labeled 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,vw hfx (jdm.,8;d gug shows 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 (constant volume,d., xjwd8hf;g(vmug ). For which process(es) does the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for a;iak7h kpurm464f a,qn ideal gas, which one of the following reversible processes has the most heat asfk,m7 i;au4pkq4rh a6sociated with it?

  04.45: Container A has a sample of monatomic ideal g,r1tt ba7by*bd jdgi a022lu(as, while container B has a sample b7dud, t i (1 tr*blajy20gab2of 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 the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure P , volume V , and 7cs e8l) w255enecvg0ujogt)temperature T . Which of the following processes wo5s cgw2g 7)tceu8 enjo 0l5)veuld result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to undergo 2rf7q,grb.*y9n vae jreversible processes. Which one of the following choices is a correct statement about the heat assvyb7*n, f9j e2r gq.arociated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling