15.25: A gas undergoes the unusualbjb*p:(n+j4zdc io d7 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, ts rsd6xajg 29k1hsz0am(c1+dhe stream of gas feels cool. Tgra21h + da9c6(mz0sjsk1dxs his is because

  94.35: A gas can be taken from state a to c by two different reversible proce+kzyrj:rhr hh-0v 3/ csses, 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 isrh:z -ryhk30 /rchv+j done by the system during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the process of go0wnrrk08w-y mtz,1 dcing from a to b 60 J of heat are added, and in the process of going from b to d 20 J of he18 kn0mw-0r,dr y ctwzat 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 compvc+z3ilifx-f ti y9)ymk/6m/ressed:

  97.15: Which of the following is always true for 1 snrv+;lc u,sk0k+zjan isothermal process of an idealluk ,zv r10j+kss+n;c gas?

  13.31: A monatomic ideal gas undergoes a-hn,tp q3 8l.basaqb /n *jf1k reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value of zkq ptnhl.s -b,j*8/n1qba3a fero?

  09.33: An ideal gas undergoes an isobaric expansion folloy 8ln33q5z 2tcpwf-h(yh x,kiwed by an isochoric cooling. Which of the following statements must be true after the completion2p c-wlti5n( 8hkx3yz qf y3h, of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. In th6k c*oz4*-zf2;zvovyz exeb a58szp 9e process, the temperature of the gas increases from 300 K to px- s6ze85zefo2*9c4zozbv*v zy a ;k 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 u1x3jwkce:l4 ,.k vomn x./llas undergoes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings./4x jku:wk .oc3e 1xmnllvl, . Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclosed ideal 88 oeps.rq8dk gas in whic8qos8re k8 p.dh the pressure decreases?

  15.47 One mole of a diatomic i3dg; en.3 -cvraw+ gxg3urpd4ov o+u4deal gas undergoes a reversible adiabatic process. The prv ag34dr.3g; voo+4enxup+u3 w dg-cressure 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 samples of the same ideal gas are in en u3*vht*vlsc5pzgw :ce 9.0 cqual volume containers with the same pressure and temperature in containers labeled A and B. After the pcs5e v: p90ucvth*. wz3gln* crocesses 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 reversibgowog 544ru- 7z*hmhx x*, wsule 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). For which process(es) does t,uhwm z xo*5s7h-w44orux*gg he temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an id8x w/67r4l y xmpeza+b met+4neal gas, which one of the following reversible processes has the most heat as w 4exm+6mperltzy a7n+bx8/4sociated with it?

  04.45: Container A haslat /3fcea 8m. a sample of monatomic ideal gas, while container B has a sample of diatomic ideal gas. 3a8.a/ et cmflThe 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 gas is now at the higher temperature?

  08.44: A mole of a monatomic idiow5 qwv9 dg3(eal gas has pressure P , volume V , and temperature T . Which of the following processes would result in the greatest amount of energy agq ( 9w5ivow3ddded to the gas from heat?

  13.48: Two identical samples of to;1k5uy((ziyie 4xja monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct sky( ou4(zei5 i;j x1yttatement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling