15.25: A gas undergoes the unusual process f+q t*(ypcr 7cM $\to$ 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 pressurized cylindehu9g lq*bssc+ 6dk)3k1* l ncwr, the stream of gas feels cool. This is b1 * 3nllkghdu ss+* c9k)6qcwbecause

  94.35: A gas can be taken from st6: n k/rh 0n*0xl h; 7nrytpryodp*j4my8v-kfate a to c by two different reversible processes-7 pnpy mt*8y0/ x0v*r kn4oh: djhkrlyn; f6r, 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 during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the pro9r/x4gwbt u4 3ft65niv m :wvgcess of going from a to b 60 J /txbvr 44: 5fgnmwwtvig93u6 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 is isothermally compressed:v5kqlt gf j;4m(54bhh

  97.15: Which of the following is always true for an isothermal processi2o +xcct va90ye 6y3f of an ideal i3t+eo fccxy96ya0v 2gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal exv li* :ufs/(f1kz4tgnpansion in an enclosed container. Which one ofksvt zn1i*4 :ful(/gf the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaricedrwz+7k5u3jii vw5 9 expansion followed by an isochoric cooling. Which of the following statements must be true after the comple+zidwwe7ivr559j 3 u ktion of these processes?

  11.44: One mole of a skjso21o9h+ dmonatomic ideal gas undergoes an isobaric expansion. In the process, the temperature of the gas increases fsh jk+ 1sodo29rom 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 g- jm9w xa5txast--w ,:+npzeyas undergoes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements bez wxaat+j-9txp-ne: w , 5smy-st describes the heat exchange during this process?

  07.40: Which is not true of an isochorzmzb (x a(h(jpy g8btn499k1ric process on an enclosed ideal gas in which the pressure decreases?1(yp 8r9 bnaj(hbztk94mx zg(

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic ag5)6o xznmco rbn3li uhu7:;0b1 :n mprocess. The pressure and volume initially are given as P = 2.0 atm and V = 30 Lb)mb5: m olongu1n0h;:inuza7rcx36. 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 samples of the same ideal gas are in equa5pm-ut); wy+p(muqup:;d h ral volume containers with the same pressure and temperature in conpy+p;d5ar:muh q)p t;(u -uw mtainers 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 shows four different possible reversible o1+ xnn1rqkng,j 9pq* 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 n 191+orq xqknj*pn, gvolume). For which process(es) does the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an tdl )gaami :qp ft84nqkdji: ),d37,pideal gas, which one of the following reversible processes has thqdl7 ikta) m4i:p8,3jdpn)g ft:qd,ae most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while contai/j u.av6rlt;a hzjok+ i9z7-n ner 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 undez n.vu-zajt jk /+l7 ohr9ia6;rgoes 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 ,e0m,g0l3sb u g+u(jem volume V , and temperature T . Which of the following processes would result in the greatest amount of energy added to th m(gju e s0beg3+,u0lme gas from heat?

  13.48: Two identical samples of a monatrs(puo9/f8k ,-23ta k gjr;zwbyk qc6omic ideal gas are to undergo reversible processes. Which one of the following choices is a cotkw9royf jkc-,p /s arb(;68u2qkzg3 rrect statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling