15.25: A gas undergoes the unusual procek,no* 7q(:ucz h cjyl5d7d,tl ss 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 s a (y .pqjxef6db4lc-(tream of gas feels cool. T4-q (c. lxpfe(djba6 yhis is because

  94.35: A gas can be taken fr2fv7-cjlvp k2zm97s(5 my yks om state a to c by two different reversible processes, a→c or a5m -jc skzm92p727yyv k fvls(→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 graphj7y 7 e0(uukl:*fbyu; d/quvs shown, in the process of going from a to b 60 J of heat are added, and ;7q:ly ksbf u( vd/7uu*uy je0in 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 gap8e sxfd4 4ilfd*- u peeb08,ys is isothermally compressed:

  97.15: Which of the following is always true for an isothermal proces jbuf z1 cdn;a:8m:myn1:*t4 ycz bh:hs of an idea:8cnmfzz::amny1j c4 yuthb*d;b1 h :l gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansion in an s(m.api 9u: nvenclosed container. Which one of the following quantities associated with the g 9p(v .amin:usas has a value of zero?

  09.33: An ideal gas undek 9u 9rc.se5bxsy ak/. nku.ao)( gu,ergoes an isobaric expansion followed by an isochoric cooling. Which of the following statements must be tr,)u. /99ornsby5cueea.k u.k kg sx a(ue after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. In the lw5a6um,it 2x process, th uw5xa,m6 tl2ie 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 uocclg18 w 0.bnmq0 .r(iui9xyndergoes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following10gw (lb ..9xi8ny curcoqi 0m statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enm fk. :o2p3hadclosed ideal gas in which the pressure dec 23odpfhk:a m.reases?

  15.47 One mole of a diatomic ideal gas undergoes a reversl tt6s-,brql2ii;yp 4h zj a99ible adiabatic process. Thei j9hl,b2rp ay49 istl q6-z;t pressure 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 identical samples of the same ideal gas are in equal volc 2j.ws qh pretc0dsjh8b/:3( ume containers with the same pressure and temperature in containers labelbjdcheh8(0 r w/q.cs3 jp2t s:ed 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 rv8h e8s)t3qgy eversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Pro)tyvgs 8heq3 8cess C is adiabatic. Process D is isochoric (constant 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 ideal gas, which one of the fr fc8hguyr7 e ;(b7muk-u2db5ollowing reversible processes has the most heat associateu7cuh(ef 8gk -2dumy ;75rbbrd with it?

  04.45: Container A has a sample of monatomic ideal gas, while containeyct1lse +zb z0h 19g)so;bm 7er B has a sample of diatomic ideal gas. The two gases start with the same initial tgbtc9e 1b;es )y1lho70zzm s+emperature, 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 the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure ;a6r uf emu8 ,h1d-nglP , volume V , and temperature T . Which of the following processes would result in the greatest amount oea;lu-f g,6hnd1r8 mu f energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal inmzlj5 8*tk6gas are to undergo reversible process5zl*mit 6 kj8nes. Which one of the 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