15.25: A gas undergoe9( +gmk vgy-lps the unusual 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 ga: i0l6nd5 xr - nf) zjj,yuueoj36vpx9s feels cool. This i5yef6j,r i)x 06-z9npjujnlx : uv3dos because

  94.35: A gas can be taken from state a to c by two different reversible processe wbjpg*jxp.n5 a)+krs* q ;)tks, a→c or a→b→cw)*s .j+ j pn; qx5kkt)pbar*g. 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 system during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the process of )u vr5d: .awfsgoing from a to b 60 J of ): a v5s.fudwrheat 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 is iswvrvj1 kz4;a 37v7aojothermally compressed:

  97.15: Which of the following is always true for an isothermal process ofnk* 0bq +p-f)e,icu r 5nve;bl an ideal 5c0v,eu l*in);bn ef -kqr+bpgas?

  13.31: A monatomic ideal gas undergoes a reversib 6p vi(csd6-mcle isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value 6p-(dc c6isvm of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isoc + 4o7pd-dwpt hlk7*bkhoric cooling. Which of t4w7-dh k+dopt *pb7klhe following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. Iu(l(.p kc3f1lu6ot lcn 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 work done by the gas on thec ol3cfkt (.ul61 pu(l surroundings?

  14.46: A monatomic, ideal gas undergbsblc9 j/s /hs 7t6zb;:-p yfp/bfga-oes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the followh-s7fb-9c6bzapf s b g/ylb/ ;j :pt/sing statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclosed ideal gas inx.x(2orwmw* ;kk 0s fq3q -swop q*qj. which the pressureomwx.(wq qqs*fwq k0 s3rjkxop- 2. ;* decreases?

  15.47 One mole of a diatomic ideal gasl q0j9ppj3per8:e r5s undergoes a reversible adiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the :s5pj rr 0je93qe8 plpvolume is halved during the adiabatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samples ocluj26 z1l l4y4y7 dqpf the same ideal gas are in equal volume containers with the same pressure and temperature in containers labeled A and B. After the processesz y7l144yquj lp2c ld6 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 reversible procesaej6ac bd pf55q557koses 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 (ccb5oqa j5fkd p56ea5 7onstant 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 a8b6 dz9sk t,h+mwp aq: u-;abideal gas, which one of the following reversibp,a8zahbw -;bk9astmuq 6+:dle processes has the most heat associated with it?

  04.45: Container A has a sample of monatoc)1 8n,yj5wv nrbw,hp mic ideal gas, while container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, prew8p5 w)jrvh1ncyn, b,ssure, 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 ideal gas has pressure P , volume V , and c-ta4+ssl7bi temperature T . Which of the following processes would result in the greatest amount of energy added to thec+-i sslt4 7ba gas from heat?

  13.48: Two identical samples of a monam1h*ctmm:h37rs6 o. knb xih +tomic ideal gas are to undergo reversible processes. Which one of the followi hnoxbm +ch*misk13m trh:6.7ng choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling