15.25: A gas undergoes the unusual process M3j 3yakbdgu7 8 $\to$ 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, theli o mwt(8 4u5miq/,uu stream of gas feels coolim4qil 8/ mu o,(tuwu5. This is because

  94.35: A gas can be taken from state a to c by two diffqxje 2;wjhlx7o1r 3s d.k,pn/ erent 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 process a→b→c, 25.0 J of.,s2;r hwj7 1 x qodne/lxjp3k 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 shownmq7j xr*:4 ,nredth: s, in the process of going from a to b 60 J of heat are added, and in the process of going fr,:dhr n e qx:4m7tsrj*om 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 r7p:/n qibzs.,ne1h3yasfd,,maoj 6gas is isothermally compressed:

  97.15: Which of the following is always lhovh w9 0so*gvu/:p, true for an isothermal process of an idealhvp gls /0ho9u:*o v,w gas?

  13.31: A monatomic ideal gas undxqk7u)*zkcds 79qn s f. np6+)zqfj4zergoes a reversible isothermal expansion in an enclosed container. Which onz nqfdc67z)+q zfs*x7nju p s9).k4qke of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes a8 (4m kkhagp+pg6y 9kjn isobaric expansion followed by an isochoric cooling. Which of the following statements must be true after the completion of these prokjpg 4(ap9 +86ykm khgcesses?

  11.44: One mole of a monatomic ideal gas unij pcd )yk53gv 3*s2 qjfa2x3tdergoes 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 v sc 35axi32)f3kty 2*jpgjdqwork done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric prthyxw n5napz to+x+4ji691 schk7n 69ocess. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the hew 715 o6ht94n+pxncxajk9sy +h6tnizat exchange during this process?

  07.40: Which is not true of an isochoric process on an encl:9 5mb fb6jlenx+h nk)osed ideal gas in which the pressure decrfen)6 mhbkb lnj:5+x9eases?

  15.47 One mole of a dizjwfq, ;3na7s y3liz50k p at;atomic 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 halved during the adiabatic process, how much work was donkyn5t i73j w;lz0sqa;,fpaz3e on the gas sample by the surroundings?

  03.48: Two completely identical samples of the same ideal 2-/dr:fz ho zogas are in equal volume conhr2/:o- ofzzdtainers 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 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 difetqn63 93a bmy gl;s g.yrq0x7ferent possible reversible processes performed on a monat6ly9s3 mnaqqr; bgtg.x7ey30 omic 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 uj;8nr 89bj(d2b pkn44l ntpt one of the following reversible processes has the most heat associated with 48tju2p n(98l bb;tr4npjkdn it?

  04.45: Container A has a sample of monatomic ideal gas, while container B wrlx21o vse o4ec) 2xjh,v5k6has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, pressure, and rw2k evo,v)j1 65xs4oc xhel2number 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 ideal gas has pressure vd zu76yu02fk x:cf/i0 hi on1P , volume V , and temperature T . Whichyi6fu hvxdnkf0o: 7/z12c0u i of the following processes would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to undergo +-;hclp (;o, vut/sd6mj;gn jwywf x) reversible processes. Which one of the following choices is a correct statement about the heat associated with - +n ,t;ol(/y)6;fjwuvj;wmcgshp xd the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling