15.25: A gas undergoes the cu-q +5cl 8fiwunusual 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 pressurized cylinder, the stream of gas fe yskk 5c:o)sk.e6ypm 0els cool. Tcykkmsyke p.: )0o 65shis is because

  94.35: A gas can be taken from state a to c by two different reversible prhe/wmjc afwy ps ,+4so;vxi v1i5-3.yocesses, a→c or a→b→c. During the direct process a→c, 20.0 J of work are done by the system and 30.vs m1;wipivce hjf.x /3ys- ,5oay+w4 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 thessdbr/f1g/9yj3rwe r28mk - v process of going from a 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 tot/g1dy2 bfs kw 8-jmrvr9 /ser3al heat added?

  96.22: When an ideal gas is isothermallyhw3nyn/va3d tav .h 12 compressed:

  97.15: Which of the fo6k;onero9ysymi bg 5: pc4(d 4llowing is always true for an isothermal process of an idean bo k4;d yimr(6eo5c49y:p sgl gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expans(gjyi gmh i.ipn25 ; k20n,xvmion in an enclosed container. Which one of the folv ;(n ,02im.n2gpkmx iyijg 5hlowing quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isoywspt41j :sq-dpr(2r7r o h, uchoric cooling. Which of the following statements must be tru2qsjpo7-du1 r, tr4w(srp:hy e after the completion of these processes?

  11.44: One mole of a monatomicojem4ecrvs /g3d ;1t 1 ideal gas undergoes an isobaric 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 1rge/voc1;3 m4sdje tby the gas on the surroundings?

  14.46: A monatomic, ideaho) l26ol+ x qm+dxn3fl gas undergoes an isobaric process. During the process, the gas performs 80 joules of work onf d )h+ +x2o3xomq6nll the surroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process (;gltzrj2 ,z0pd zv(gy)5ket on an enclosed ideal gas in which the pressure decreasesp d((t kzvg)j;r5zl etg0yz 2,?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiab*g5 rii82ni2yhx w5rwp0dw s /atic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. Ifh2i*0wgi snrr 52 y/w85ixwdp 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 d -i uhe)-wfgi.,l vj7equal 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 hil 7i,d -ugfwv-. ejh)igher 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 ps .;zzejp4vebw/+gv2 rocesses performed on a m;z 4z/we2+g.vesv b jponatomic ideal gas. Process 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 one of the folleplldd g-,ym.)w 9ox*owing reversible processeswm py x-l.e,og)*d ld9 has the most heat associated with it?

  04.45: Container A has a sample of mon q*5*ds+2ljbe kfz l2xatomic ideal gas, while container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, pressure, a 2k5 z lbdx*fqe*l2+sjnd 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 moe4pl6 7qb2xmz,9v orff c -k)enatomic ideal gas has pressure P , volume V , and temperature T . Which of the following processes would result in x oc q74zf ,bprl-mf2ee)6v9kthe greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of1 x5xpfnz .dq7 a monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about t xdq5f7.znx1phe heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling