15.25: A gas undergoes the unusubwvyeb (e kryyr.4,- 3vk(4trkkn7o 1 al 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 feels ctxqqu 0.,(xbo7dqr 37 p kkl*hool. This is becauu (7p xt qbk,*qk73oqrx.l dh0se

  94.35: A gas can be taken from state a to c by two different rebtd/ opvzt9 *qmenz 4a4tv5( (-ott+k versible processes, a→c or a→b→c. During the direct process a→c, 20.0 z 4v(+ *qpe(/ t9k45on-dvamt tbztotJ 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 V,//mv-llo1) vy b w5r6ydmn7 jlx7hre olume graph shown, in the process of going from a to b 60 J of heat are added, and in the /yvnrd)1h/ yl6 5r7l, wm7leoxmv-jb 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:o76 mmhzp zgzmi34 cj2c,q1n2

  97.15: Which of the following is always true for an isothermal processjfcrx;k dm:+v*l8 jv6 of an ideal :dvvl6j+ k8; j*r cmxfgas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansion in an fly/11: u+ x: . ztm3mmoh)*fmjjmbesenclosed container. Which one of the following quantitie :3s /.yuzt em mbljmh:*1mxfm+1jo )fs associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an id:/jxa;7w m0h pu3b6.rjk pacsobaric expansion followed by an isochoric cooling. Which of the following statements must be true after the completion of these pr drp:0mhxu;7 jw3bkja6 ac.p/ ocesses?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. In tho( /) y:rvr z 8ves+6dmn)stmwe process, the temperature of the gas increases from 300 K to 500 K. Which on/6o r) s wmm(rvn+e): syzdv8te 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 wc)tyd5d w:u0it,a5c isobaric process. During the process, the gas performs 80 joules of work on the idct05a,wyut: 5c d)wsurroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not trueckw-fiq2yo;pgkahz)e2h *sl 0l 8 4 y) of an isochoric process on an enclosed ideal gas in which the -yla)i k*h f82 )k24pch o zwqye0gs;lpressure decreases?

  15.47 One mole of a diatomic ideal c z6-qjni fm9ccrk0+3gas undergoes a reversible adiabatic 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 sample byr 3+zcic6fmjq9nc- k0 the surroundings?

  03.48: Two completely identical samples of the same .u+v c.trqse.ideal gas are in equal volume containers with the same pressure and temperatutv.+esqr. . ucre in containers 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 differe0 :t5 bpbh (agjewj0+ sa;iw0tnt possible reversible 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 volume). Fora5+ewjb;p:h sai tgt0wj0b( 0 which process(es) does the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an ideal 7 tg3lgfr/9d8hu * tjdgas, which one of the following reversible processes has the7g *dudh3tr jg/f9tl8 most heat associated with it?

  04.45: Container A ha4 iz jep92/(mkxir/4sv.iibt s 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 undergoemi(i./z9 /jx4re s24 kvp tiibs 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 idearj5,kt0,b1m rc wa)jq vk pz(-l gas has pressure P , volume V , and temperature T . Which of the following processes ww krvtz5( -cp0,k jb)qm1j,a rould result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of awyvkvr-) l 6+wco do-; monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about +rwovlkw6--yd o) v;c the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling