15.25: A gas undergoefbfu04) r. et4vj,hmns the 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 escapoqo l +wef6m7*es from a pressurized cylinder, the stream of gas feels cool. This o7m+eqw l6o* fis because

  94.35: A gas can be taken f qca vimypcue:0 pu+(2 a utc/2dj5*.hrom state a to c by two different reversible 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 added to the system. During the process a→b→c, 25.0 J of heat are added to the system. How much workp *au hu5da 2u:je(c2tmiyp0q /v +.cc is done by the system during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the process of going 9p1q 1tma-fze v+8n mya8ig;yfrom 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 d, w f1ny+tei z a98m; vqm1g8py-ahat is the total heat added?

  96.22: When an ideal gas i ;jvz8;p jcz3cs isothermally compressed:

  97.15: Which of the following n-6j /4 foc) qf.b4zf bv/4rkg2el wdbis always true for an isothermal process of an ideacvng/ zff6 . kdqr44b2f4je-w/ )lbobl gas?

  13.31: A monatomic il:e19hpuq jh.o qimjpnvwnoi q)4;oa64.;l /deal gas undergoes a reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value of mh j )i:q4voplj1 6ie/hon;.woqpn a.9u4 l;q zero?

  09.33: An ideal gas undkexv wgq8 /86o+-hb uvergoes an isobaric expansion followed by an isochoric cooling. Which of the follh8-e6uwkvqx+ 8 / bvgoowing statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isob/z; /(hglu sgkn*c6ylaric expansion. In the process, the temperature of the gas incrshu/ ykz/cl* g6(;glneases 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 under2o,ga *3 ;aqphiwvgw )goes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best de3 wa,wpqi h2g*; voag)scribes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclosed ideal gas i: ::3agvvbk hwuh4ip:n which the pressure d wb3a:u:hpki4g h:vv:ecreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic procesui jq oe+o 9p s:b*)npa,2c)ygs. The pressure and voluigoj: n +yc2pb9ao )ep,q) s*ume 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 vopv)d7.eb9l+jj snv/ye , k 8zhlume containers with the same pressure and temperature in pn,v7 .y+s9e)8j/lkj hv dzebcontainers 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 possible reversible procesmzsv 0 g kk:x0-3tqj)hses performed on a monatomic ideal gas. Process 0t- k3j0zq:sh)m kv xgA 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 fj0x m 4wbi +dc 3uk;bxb8bc18dollowi1c0b;u 8b4 +mw 8b dckxdj3bxing reversible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic idealvw0a:bjk2 hw:h; ;vuv gas, while container B has a sample of w;j0a vh;:kb2v vh:wu 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 the higher temperature?

  08.44: A mole of a monatovq0le cc; t)m c*,w.jvbss28v mic ideal gas has pressure P , volume V , and temperature T . Which of the following prl.bw0cv;,cvvt2c*ss 8q ) jemocesses would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal g9q1-p9la m- ud owi.pvas are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated a q-1wlpdu vmpo.9i-9with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling