15.25: A gas undergoes the unusual process Mc d m,di97er (o9pmd6t3xof7i $\to$ 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 frvq t/eu/)t2(gff,cgt om a pressurized cylinder, the stream of gas feels cool. This is beca)gc /, tef(tvf2/utqg use

  94.35: A gas can be taken fromwha4w nk /p k gk;905cbavz)k. state 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 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 durin 0 k)k.wwac ;9/nphk gkzb4a5vg a→b→c?

  06.26: In the Pressure versus Volume uy1xp,fec6 y; graph shown, in the process of going from a to b 60 J of ypyx c;61 u,efheat are added, 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 gasxt5db 1u*g r qkw3g6(vf/ xn1p is isothermally compressed:

  97.15: Which of the follow z1nbobr0h 80 lyij/)jgd0 -; sog1zfiing is always true for an isothermal process of an ideal gaoriz -is gdy0o8/zn 01g )flbj0j;1bhs?

  13.31: A monatomic ideal gas undergoes a reversible isothermal exd-fq2va +7pr hpansion in an enclosed container. Which one of the followp72vqadr+hf - ing quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an is3*-p-3o2a(x mfdynqs j6vefa a w; c8uochoric cooling. Which of the following s-fanf-38q j;yxmd(c3auoswep2 a*v6 tatements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gasj feeglu+ qxt-9x7)s b6dl8z/ undergoes an isobaric expansion. In the process, the temperature of the gq/ez9u-l sx)bl6 +tjf e dg87xas 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 isobarn8sxyc9*nlm2vlt1id ,:fiw,6 , uxpmic process. During the process, the gas performs 80 joules of work on the surroundings. Which one 9i nx 8w,slu:mpl, dc26tin1fy v*mx, 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 ua5pn g6x4xgb -i,.ki mi(*veideal gas in which the presuk5(g -. g4bv ix*ieixn ap,6msure decreases?

  15.47 One mole of a diatomic /.r7ded+ mit6) zab;hmnb t/p,xg/asideal gas undergoes a reversible adiabatic process. The preget rza,b+;mnt .b6 p7sdh) xdim/a//ssure 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 gas sample by the surroundings?

  03.48: Two completely idenj(2t ;q5yb ity t:lc)de;2ybwtical 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 gases in containers A andtq5bwjetcy:;)bi ;2 t 2ydy(l 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 diagraz z p1b44ddg7om shows four different possible reversible processes performed on a monatomic ideal gas. Processog4d71zpz4d b 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 odcd4em am1x j/uf424t fswj)wn f848kne of the following reve4 cf nms u)fed 1wt8kj4d4/8wma2x f4jrsible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while container B has gf (:bk6nj (i8 fqwmd5a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, pressure, anb(g i m n(8fq:5kd6jfwd 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 xw5 .w saul-)xz,-h+ (dhjm xv, and temperature T . Which of the following processes would result in the greatest amount of energy added to the -z j-h )uwdalwx.x,m 5sxv+( hgas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to undergo reversibl9n7ejj(pglrd g07 nt ;e processes. Which one of the following choices is a correct statement abe0g g797l (npt jrnjd;out the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling