15.25: A gas undergoes the unu9vv(l)hs0v 6 yg2jii jsual 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, tf6u4+giwa .eszu6 r1 fhe stream of gas feels cool. This is be+rusfai1uf.e664 zw gcause

  94.35: A gas can be taken 53fvvaeg xg:/ from state a to c by two different reversible processes g5/aev3x: vfg, 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 system during a→b→c?

  06.26: In the Pressure versus Volume graf9b4pd8 kd 2zyph shown, in the process of going from a to b 60 J of heat are added, and in the process of going from 9kb482fdzpd y 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 isothermally compresswr-iit,1p0 p fed:

  97.15: Which of the following is always true for an isothermal process (,i)gcon5v)cxm0jn 4n 5rfn x of an ideal gac5n n0m, (rox)5fnvngcij4)xs?

  13.31: A monatomic ideal gas undergoes a reversible isotherma:-ziqmerd j 12l expansion in an enclosed container. Which one of the following quantities associated wjzdqim2e- r1 :ith the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion mu:nt8 ccn3pk w(op6l)(sk m 5followed by an isochoric cooling. Wwm6)oulp 3sp5c n(:mnc(t8kk hich of the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansi0po0 gxx 0oyue+;3kbqon. In the process, the0obpo3eu0+gy0 ;xkq x 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 surroundings?

  14.46: A monatomic, ideal gas undergoes an ism .px n/y x9yc3kiij):obaric process. During the process, the gas performs 80 joules of work on the surroundings. Whichy9p m xy:icxjnk).3 i/ one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an en.sfv y9 q0kl8ek1ki( mclosed ideal gas in which the pressure deqm(fe9 sy1ivkk8k.l0 creases?

  15.47 One mole of a diatomic ideal gas und4ud .x1th zzr)pgqg.y sli/:*ergoes a reversible adiabatic process. The pressure and volume initiallh )y *rtq.szupizl 41:g/.xgd y 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 identical samplesooh: l7d26i rkvq d0kj i(e1;i of the same ideal gas are in equal volume1ork;lk d26e:0ih( o j7idvqi containers 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 different po ag e*5 qjky,)i+tlv;wssible 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 isochoric (constant volume). For which process(es) eyaj,k*iw lq5tg v+;) does the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an ideal gas, which dopo7dk 1*e h,one of the following reversible * odpod17eh,k processes has the most heat associated with it?

  04.45: Container A has a sampa6buyg mi+jr j80sr00le of monatomic ideal 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 is now at t06 +0rjrsjyu a0i8g mbhe higher temperature?

  08.44: A mole of a moc 6mp(ypjp; wpj.gp:+natomic ideal gas has pressure P , volume V , and temperature T . Which of the fol6 .pgwp p yc;(jm+pj:plowing processes would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples ofaczr x:3u,/ ji a monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associat:a3zx/ rcju,ied with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling