15.25: A gas undergoes the unus xvvfn1:wpe/ 1ual 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 frof/ nyh;baxt4l1)- 3ixcha:vn m a pressurized cylinder, the stream of gas feels cool. Thi nn:a1c;4) fxt/b-lxhihvy3 as is because

  94.35: A gas can be taken from state a f3kth v rhzzk3.vmt/g2y- 9p;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 donm zhy2z3;3/pgrt tfvk 9.-vhk e by the system during a→b→c?

  06.26: In the Pressure versus Vol 0(/xp(r8lr gsnkk on-6hup: nume graph shown, in the process of going from ap(rk(kng unsl x06r :h/-onp8 to b 60 J of heat 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 gas isaoo;b. bcl((z isothermally compressed:

  97.15: Which of the following is always true for an isothermal pkw 9itd:2z 6)n qsy21o6jie hsrocess of an ideal gas?tq)idj9 2k2wsz:6yn1oh esi 6

  13.31: A monatomic idea m4*oqg+2 p rehrk6pfi+(v19bn7pngzl gas undergoes a reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value of zer76 npg m ih+gkb9*o4prqfnp1 ezvr(+2 o?

  09.33: An ideal gas undergoes an isobarld)tl 1 x.xi,kic expansion followed by an isochoric cooling. Which of the following sitxk1. dll) x,tatements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobee dfn/b1 zppiv h27-.aric expansion. 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 on the surroundings?/-2pn iezf ed71.phv b

  14.46: A monatomic, ideal gas undergoes anm rb6n,: zgxyvwrlg yw;v9ah(7 8b*d* isobaric process. During the process, the gas 7:yx d9mw v*z8rg;r,v* yblgn(ah 6bwperforms 80 joules of work on the surroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not tro(f mby+; : 8jc9tuz0vdep +vmue of an isochoric process on an enclosed ideal gas in which the pressuco+m8j(eu 9 pdyzmf+; v0tvb: re decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reverhah+/ bql23wrsible adiabatic process. lbq r+ah /2h3wThe 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 gas sample by the surroundings?

  03.48: Two completely identical sa,z xwdfk;(7dhmples 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 higher zxdw(7hkd f ,;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 fou4crup.hto n (4k-yi .ar different possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant tp uto.4icah(n.y4-rk emperature). 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 ideal2gzjc 9)uyg c-b-3avqjtl+y goqnu5y 8;l k4 3 gas, which one of the following reversible processes has the most heat associated with i)y3v; a5t4knqc j+g--o lylu 3g9yuz8qb2gcjt?

  04.45: Container A has a sample of monatomic ideal gas, while container B has m, tlkx 6j4km6a 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 gmxtmk k664 l,jas is now at the higher temperature?

  08.44: A mole of a monatomic ideal gas eb +19ttuj ,aahas pressure P , volume V , and temperature T . Which of the following processes would result in the greatest amount of energy added to the,+ aj19uett ab gas from heat?

  13.48: Two identical samples of a monatomic ideal gas ar3/;s g./clye caagap kv 8,p(le to undergo reversible processes. Which one of the following choices is ka8a v/lcp galg(c;/py.3,se a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling