15.25: A gas undergoes the uq,( h e0bm-sshnusual 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 fl a :z8.zj.hdmeels cool. This ia j zm.zd:8lh.s because

  94.35: A gas can be taken from state a to c by two different reversi:snlyd8dln8gg2 jp glz9 3:s:ble processes, a→c or a→b→c. During the direct process a→c, 20.0 J of work are syd:sl23p8d:8ng:9 jg l zg lndone 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 q/ , id hh2b.(eojv.rlshown, in the process of going from arh2b /.id.lqo (evh ,j to b 60 J of heat are 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 isq zyllj2 q ipv/3-o*;0jwme1;qr p v1w isothermally compressed:

  97.15: Which of the following is always 9. hn0gelg)aptrue for an isothermal process of an ideal pg9n.e)ha 0lg gas?

  13.31: A monatomic ideal gas undergo ljhgtfbc9,j+e+ 9k5v *dq+l kes a reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value oh9jvbf9t+ k+kc, *5+ll j qdgef zero?

  09.33: An ideal gas undergoes an isobaric expansion fxjiafcz i7wup. v+u87q9 xd+* ollowed by an isochoric cooling. Which of the fol px8di.q9x7wf+zjuu a+v* ic7lowing statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaris;ejy)(pw ,e kc expansion. In the process, the temperature of the gas increases from 300 K tjk ;esw)ye p,(o 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 an isobaric processimd 35433yo ut3ak vws. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statemm 4dyoksaw 3333it 5uvents best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclos+u jm4)uzjgo1mh f+ 7sed ideal gas in which tj 7+sfm ou+1mguz4j h)he pressure decreases?

  15.47 One mole of a diatomic ideal gas ciz6)d q8blf* 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 adiab 6lqcb )z8i*fdatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samples of eey7gs df*.(7 tggkq (+5i67el fpksrthe same ideal gas are in equal volume containers with the same pressure and temperature in containers labeled A and B. After the processes are performe d5yktf(ee(7sfeg k.r+ 7lpi7q*sg6g d 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 reversibl1fdp)m cu jak(o(t0xqqrdu6ist(u;; sj 2m28e 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 whicxurdds; fsitt26 ujc(jp mu1q(8;o2( 0q) m kah 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 one of thei +.2nw(4artru7a bn l following reversible processes has the mowa.i(r2nu 7br4 lnat+st heat associated with it?

  04.45: Container A has a sample of monatomic ide+po txcl e+ovx+*z3:m al 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 sample of gas isocvm xzx+3p +otl+e*: now at the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure P , volume V , and temo1* b.zm ibrq3perature T . Which of the following processes would result in the greatest amount of energy add.q 1mzbib3 ro*ed to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to undergo rever i:5u e(oe+j65zulwy.n 8 simfy jwe;4sible processes. Which one of thi s6;njwo m5 y:z.fuw j+i(e l58eeu4ye following choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling