15.25: A gas undergoes the us1z 6 rrq1u/l:r)vcz ynusual 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 feelf.ztgw s02o +b)lt7uqxvbb;bz *( rw;s cool. Tb7* b ;wrzz;b)t w(0vsquxl fb+o.tg2his is because

  94.35: A gas can be taken fr6cr rl2pto6zqp;t n.9f xa+bh-lnd*5om 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 pratl x6obt5pn f9 2.hc;rpn-rdq6*+l zocess 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 process of goinous,m nj0j3 4w aad18gg from a to b 60 J of heat are added, and in the process of goiom0 4d ajgu js3n,w1a8ng 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 coaf y(;5aw +uiew4xm( mmpressed:

  97.15: Which of the following is always true for an isothermal pr9 dso gpgqp62utpk t)hv-h07/ ocess of an ideal )o pstdvuh0 gp9qg6p2h k7t/- gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansion in aw2gh, jneac /2n enclosed cona/ce h,22jw gntainer. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followef3ie(uyrk92k i7:r5k,w dau0lx ft9 ed by an isochoric cooling. Which of the following statements must be true after the completion of these processes ,kd3:9l(iy 7ke29xrauifu5e rw tk 0f?

  11.44: One mole of a monatomic i+m 2:u.m cjun.dw yuc(deal 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 beswdm c.u(.m u2y+:jcun t represents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoe:,hxrpr:t.ym(h.q z5sm2h w c s an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat exchange rzp :m.y,xqhm t:(sh5chw2r. during this process?

  07.40: Which is not true of an isochoric process o8j91as4y7ys l .l5aqvqe fhq 5n an enclosed ideal gas in which the pressur5ql 8yqf 4ass qve9a571hlj .ye decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiuet w729 hkj/cof3n(pabatic process. The 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 sampl uj w/p73chtfnok9e2(e by the surroundings?

  03.48: Two completely identical samples of the same idead8*;esbpntydc , w;n 2l gas are in equal volume containers with the same pressure and temperature in containers labeled A and B. After the processes are performs2n,nw ce ddy*;;8btped 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 reversinmzq*zzc 1-xz60 3s qjble processes performed on a monatomic ideal gas. Process A icz3m60zq jnz x sq*-z1s 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 ider wo09naehe.q 4tz1p 4al gas, which one of the following reversible processes ha409 w po14ate. ehznqrs the most heat associated with it?

  04.45: Container A h )d 7*zucmxrbr+*c kpet jtxu,//5:cs as a sample of monatomic ideal gas, while container 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 undergoes a reversible adiabatic proce5xmb7) *c+se * trtdu p r,ckuxj:c/z/ss 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 guly7z(;, fvhkj* yc3has pressure P , volume V , and temperature T . Which of the following processes would result in the greatest ayh3(yl7u,; *kg cvjzf mount of energy added to the gas from heat?

  13.48: Two identical samples of a mooul r 11ebuw.55v; qjtnatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated with lbq5 tvu w 5ur.j1e1;othe processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling