15.25: A gas undergoes the unusual procw) oq*4x pmt9eess 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 *dbn61 . gdyl md;he7kpressurized cylinder, the stream of gas feels cool. Thm dd .k1*lhb; 7dneyg6is is because

  94.35: A gas can be taken froms sv..fmdheazpym;4r z7.+ 1o state a to c by two different reversible processes, a→c or a→b→c. During the direct process a→ pf s.1v.as+.4 zmm;rehoz7dyc, 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 */xrl.w6bk esh(vi fzc5k2- 4dcwwk)graph shown, in the process of going from a to b 60 J of heat are ad)x fk(dv/ bl25ekk i4w wwr*s-c6zh .cded, 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 isothermally compresse,p9ko5mpcv yr+z-*xqd:

  97.15: Which of the followinz/3i 0z f6ptung is always true for an isothermal process of an idezf z30 nt6/piual gas?

  13.31: A monatomic ideal gas undergo*ho tl )t ja16xk*pm4jes a reversible isothermal expansion in an enclosed container. Which one of the followint6lajtxk*op1) mhj*4 g quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric exp ju xy4wq/f()bansion followed by an isochoric cooling. Wxyqb) j/f(4u which of the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gae6iy6;+wb czo fv(n en27ptk:s undergoes an isobaric expansion. In the process, the temperature otk ce2 bn 7(ipyz+6v:;eo6wnf f 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 ir4*,z ts8xh xs- moed-sobaric process. During the process, the gas performs 80 joules of work on theed,-x xsr-s m*t48zoh surroundings. Which 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 enclosaq0u* ge9nfa3iqhv93 ed ideal gas in whichufe39a nvha0 g3*iq q9 the pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reverss6x z/pepf,x/oqm 08ggz o83p09eht* f7ov olible adiabatic process. The pressure and volume ini3p,6gq vfxe0f/p8/lxoo0ohezs *moz8t pg9 7tially 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 eqx+3y4v3 z6uyf4i o(h 1 isjb+a,a ydygual volume containers with the same pressure and temperature in containers labeled A and B. After the processes are performed on the gases in containers A an+ a43f i4 yy6jydvz3 y1hu+(ga i,obxsd 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 seozi45 ecpnsju/ se3 :/3wd4lhows four different possible reversible processes performed on a monatomic ideal gas. Procesle/s z: s4/33 dc54euip wnjeos 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) 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 fochnjo0-8 ib e; gyv x14wmn;(cllowing reversb m n-;wnc1vj; ci0 (gexh84oyible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while gu-uzk vy- kopx,c67sbd94 o0container 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. ,b0k6-o4 u-c z9o7v gp kdxsuyWhich sample of gas is now at the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure P , volume V , and temperabgik:9g v;jv3 :i wcr qd4 5dwey6h4a:ture T . Which of the following processes would result in the grvh5 w9bv:4 gik 6;cawrigy4:d3 j:d qeeatest amount of energy added to the gas from heat?

  13.48: Two identical ;*5uw fi1q ddasy 1.ecs :.c(pudwj0f samples of a monatomic ideal gas are to undergo reversible processes(.dq u:c0 wje*f ss5i;d1.ycdp f1wau. 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