15.25: A gas undergoes the unusuxfasw /(+z0 bsal 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 cylind1an/2oh7sqa 2vf/ gt) ja syl.er, the stream of gas feels cool. Tt2)lsva/ 7jns/oh1a f.gq2ya his is because

  94.35: A gas can be taken from state d n*/zjb5kzsp *wg0f-a to c by two different reversible processes, a→c or a→b→c. During the direct process a→c, 20.0 J of worfz/w**jdgp b05z sk -nk 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 proc u82g ujk5;kipess of going from a to b 60 J of heat au8;p2 kkjgi u5re 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 isot9cl u4skt 7x5chermally compressed:

  97.15: Which of the following is always true for an isothermal pr7gk+rb *tw2plwp ,8 wvocess of an ideal+wwb ,t2p8lvw*gkp 7r gas?

  13.31: A monatomic ideal gas under6 c.s qfy*b;uehe3gs* goes a reversible isothermal expansion in an e6ub*yh.*e s esqfg;c3nclosed container. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansiow pk9 h g (gy6yfq8r(cmwg/5-un followed by an isochoric cooling. Which of the following statements must be true after the completion of these processeww-g mp yq 6k59gh/u8 yf(rc(gs?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric/f7tpxp7oy*f x k9ll:h +: xny expansion. In the process, theff*ytxxxpp7 /hl9nk : o 7:yl+ temperature of the gas increases from 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 gas undergoes a:ghqq pik )56thy3o(2a rsg( gn isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the fol giqh g2 5pr:ay() og3k(6hqstlowing statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclfc8;c4j n n)vaj k5,at .fdk.fosed ideal gas in which thccfvj)an45f,d;n akf.jt 8k.e pressure decreases?

  15.47 One mole of a diatoxz/,nliq 29dwmic ideal gas 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 halvenw/9ix2,ldq zd 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 aree1knpg,t n qb/+(ph4r in equal volume containers with the same pressure and temperature in conta1+gen pqpb ht(k,r4 /niners 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 revwse6cm gc:rt 447ra2persible 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 the temperature of the gas dscaec6 4: m 274wrrgtpecrease?

  16.48: From a given state of P, V, and T for an i, yve l;p9p:oudeal gas, which one of the following reversible processes has thy9 p;uvpoe:l, e most heat associated with it?

  04.45: Container A has a sample of monatomic idea.gb r)oh/.hl zl 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 process that cuts the pressure in half. Which samlo . .bh)zghr/ple of gas is now at the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure P , volume u,alj8 n.e fn n;jf,: im6hh,aV , and temperature T . Which of the following processes would result in the great 8n,6: jalh .,ajfm f;euhnin,est amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic gf;)vvt*h1(og:un ;a),f1 aqi nptue ideal gas are to undergo reversible processes. Which one of the following choices is a corra1:vqgnv )fuhg;t pa;u*, no(te1)i fect statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling