15.25: A gas undergoes olff; ) b(l,f6p-mlobthe 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 pressepz/rupkg )4 ag 31pn2urized cylinder, the stream of gas feels cool. This is becau/4pgp)312pzkgera n use

  94.35: A gas can be taken frfp.yx n6(m)o jom state a to c by two different reversible processes, a.x6yn) (mopfj→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 system during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the process of goin; qz*w0g lqzhi dq3q9*g from a to b 60 J of heat are added, and in the process of going from b t higz*0; q*d l3qz9wqqo 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 i55 q3pgihfgcti h( )m9sothermally compressed:

  97.15: Which of the following is always true for an isothermalkh8puf,pp 7k15fs -ic process of an idealu5ifc ,ks- 8ph7 p1pkf gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal exp+eame.a3i ; */fs zhs:9v;sipahu z6wansion in an enclmaa*zfz3wu e9. sh6h/+sai :ie; v;sposed container. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isochoric cosrknx.+ 8qy7q oling. Which of the following statements must be true after the comp.+yqn 8skrx7q letion of these processes?

  11.44: One mole of a monatomic ideal gas un68brjcu 46d bldergoes 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 work done by the gas on the su b6cl jrd8ub46rroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. During the proc*y)t s u;rr*-i)owdnttn,3b cess, t- dttrrc in),t)*b*u; yon3swhe gas performs 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 oimg9/4 )dx1uqtu w5pkf an isochoric process on an enclosed ideal gas in which the pressure decreasu5)i4 /kt19 wmqpxgud es?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic 6)x.(vi3 wffq,h*semt fli58 3ftengprocess. The pressuregnf fmxi l3f,eq 8 .sh )*w(6v53fttei 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 done on the gas sample by the surroundings?

  03.48: Two completely identicf a/a/ts-pq 0io /h.kjz.ds2xal samples of the same ideal gas are in equal volume con-a sq xp..tfs h//2kzao/0djitainers 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 fpah 7hi8x5y;eour different possible reversible 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 isochoric5ayhex8;7p ih (constant volume). For which process(es) does the temperature of the gas decrease?

  16.48: From a given state of P, k5tz,s9 /u*u b5zr *bkcxtl 8jV, and T for an ideal gas, which one of the following reversible processe98u5btrkt*b z/*cj zs5 u ,xlks has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while container B+ ttxmd nrbv7v.ii2)y03aa hkl)5ji: has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, pressure, and number of moles o5i2 l)+a.d:t iva x )iytjkvmbn30hr7f 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 1o 2u9z9bvzrn4kdj8 jn:(ptq P , volume V , and temperature T . Which of thn: rj 1 v2uzjdp(n98zk9o4 tqbe 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,)ixfno*of g: gas are to undergo reversible processes. Which one of the fol*o gn,fo):x iflowing choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling