15.25: A gas undergoes the unusual process M xg7 5ykm y1cxfnf2e99$\to$ 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 hi67- azb.bkn* jdlw50yci6s pressurized cylinder, the stream of gas feels cool. This is becal6ya-*w bk.di zic05s bh6 n7juse

  94.35: A gas can be taken from state a to c by two different revew ;i;e6gr k,amrsible processes, 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 add k,ega;rm6w ;ied 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 4c0kk i.d i4zndd5v:uthe process of going from a to b 60 J of heat 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 d5n dk4ic kzv:i0u.d4d, what is the total heat added?

  96.22: When an ideal gas is isothermally comare.aq*1:sui vic l0)nqrg (1pressed:

  97.15: Which of the following is always true for an isothermal process of an vn0gzzla -ga9 9 oe3rt.fo 60nideal gas?f0 ao.g z9tv zl0-areon3ng 69

  13.31: A monatomic ideal gas undergoes a rever5bhujr q+(8kl sible isothermal expansion in an enclosed container. Which one of the following quanb+l (j5qr 8ukhtities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an issw;h n-*0pczlk a(5 bxobaric expansion followed by an isochoric coolink *;axczbp(-0hs5l wng. Which of the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes apr hy7uz2s2l ,n isobaric expansion. In the process, the temperature of the gas increases from 300 K to 500 K. Which one of the followinpl ,z2 yhsur72g choices best represents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. Duri84bcjmui h3y.2r yjg;:,gg dung the process, the m :4dru 3b c.;8 jy,gyhg2igjugas 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 of an n2nwj r,4e- do.k 6qxn(g*gwmisochoric process on an enclosed ideal gas in whi 2,qw*gwr d nonm nx.6-k(eg4jch the pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible a3tf9o5:tkld+r 84m vg 0t7172cil u qslwseg gdiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the volume is halved during tc4m:7kl1f+2lqgr37 et w gd 0oivg9s tu l5s8the 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 k4;a h. y/ 0yv2q9e5xsfvsadhhqyv,y gd 76.ain equal 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 and B, which is at 4a..dxysady q6h ;se 7v0ak52fvyqv/ hy ,9gh 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 differenq 4 rgd;h0s0ykpqj*/dt possible reversible processes performed onjhqd0*krq p/4ds0gy ; 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) does the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an ideal gas, whicht .s;dvtv80+svgsq 0i 6nd9xg one of the following reversible processes has the mos0vs6x8. ;igdt d+t0v vq9ssgnt heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while contai- pql5cp;ros m3 f5p 8ph5bgk52zf(c bner 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 halfglzbo;58fcbcs(p5 m5h k5ppp -3r2 fq. 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 temp730bi3kw qfeh erature T . Which of the following processes would result in the greatest amount of energy addb3ie 07wf h3kqed to the gas from heat?

  13.48: Two identical samples of a monatomic idb ,wg h t.-kkkczy6d;4eal gas are to undergo reversible processes. Which one of the following choices is a correct statement about the hea6w by,h- .;dzkk4cgt kt associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling