15.25: A gas undergoes the unusual plp:qkbpw; -zl l. (gb)rocess 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 gev)85 i9w oqpfas feels cool. qip fv8 59)woeThis is because

  94.35: A gas can be takenwsyx,n;s-t3yxm5 ,uf .pip)k from 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 process a→b→c, 25.0 J of heat are added to the system. How much work is done by the sys) ,wfutyk5;x,x psn.s-pi3ymtem during a→b→c?

  06.26: In the Pressure versus Volume graph showdwk vefck :7tje9u-(,(a ,p.a)hrnbsn, in the process of going from a to b 60 J of heat are added, ander f7(,,d: )twcn-bph a(uekjav k9s. 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 4qd 8- uv6j4vcs48nzpci7irsis isothermally compressed:

  97.15: Which of the following is always true for an isozms 2jd .5zc,zsir)a 2f,; hzkthermal process of an ideal gasz)fd2krz 2.hm; czz,ai,s 5j s?

  13.31: A monatomic ideal gas underbh )1::updsk/w9 yq lpgoes a reversible isothermal expansion in an enclosed container. Which one of the fod::w91yplp bks )qu/h llowing quantities associated with the gas has a value of zero?

  09.33: An ideal gas undt tv0jh,3s9- 6 cnt2yumyuc.dergoes an isobaric expansion followed by an isochoric cooling. Which od-juy y9 t0ts.v3,n6hcmt2 cuf the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansionk so( dbzko+vhi:1;px9w )z8r. 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 wor(8i1kdpx z )zhb9svo;ok : w+rk done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric 2cl+.b xeqp ,y3msl 3yprocess. During the process, the gas pl 2qp3.emy cly, +3xsberforms 80 joules of work on the surroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isoch ay703r idwlocu nf.8*oric process on an enclosed ideal gas in which the pressure decreasesay c.owl* 0d8firnu73?

  15.47 One mole of a diatomic ideal gas undergoes a revysbnli8j l+;xbc5 n68 ersible 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 a8lln8b ynxb;5 js+6c idiabatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samples of the same ideal gas an4 t1jjs/u1zcamques o.e9 e0 8:6sq cre in equal volume containers with the same pressure and temperature in containers4zs1c 98seucne16 e /j .m:s0j qutaoq 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 reverslk94 kyc 2)48gkhl limible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process C is a8 ih 9kl4y l4kcl2)kmgdiabatic. Process D is isochoric (constant volume). For which process(es) does the temperature of the gas decrease?

  16.48: From a given s gfw1hfdvxhgi04 zejt;n65+4 tate of P, V, and T for an ideal gas, which one of the following reversible processes has the most heat associated with it614vhjdh i0getw4zg n xf 5;f+?

  04.45: Container A has a sample of monatomic ideal gas, whil9jg-xkk,- ez6tnd fv)e container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, pressuvn -gk9-6,dt )fe zjkxre, 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 monatomolzz+sxo25hgu s,9mvmgs*e 8 0 v pb 84kst;v(ic ideal gas has pressure P , volume V , and temperature T . Which of the following processes would result in thez0(; zl89,gubxksv+smpo vg5m8e2 ht*4 o vss greatest amount of energy added to the gas from heat?

  13.48: Two identical samp9hfe *g go4/ooles of a monatomic ideal gas are to undergo reversible processes. Which one of the follooeg49o*/ fohg wing choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling