15.25: A gas undergoes thaf:a;wsa t25fx.l, u oe 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 escapes from a pressurized cylinder, the stream of gas fe)3gqjhgr:h 0oels cool. This ihr:0q3h o )jggs because

  94.35: A gas can be taken from st9yew*kdp. xh4 tn:s p6ate a to c by two different reversible processes, a→c or a→b→c. During the direct proce.pdyswh* 9t: epk6 4xnss 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 vers* /z iyvj8 36oa:b o/*jvpmswqus Volume graph shown, in the 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 d, what is th3q*jy6pm/w * /v:8aob sv zijoe total heat added?

  96.22: When an ideal gas is iso ,znwc yxo;lk0kw :+3ythermally compressed:

  97.15: Which of the followingxwxh*g-3k7 tou; w+eq is always true for an isothermal process of an ideal gas? 7h k3 xgetw-wq;*+xou

  13.31: A monatomic ideal gas undergoes a re *gymoo z5ng3+axw/f6 versible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas wygg+nao3f xo/ m*5z6 has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followeep6bryr6 ,* fld by an isochoric cooling. Which of the following statemee* ry 66,rpfblnts must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas ,u +)a/xq;zjiu lut8qundergoes an isobaric expansion. In the process, the temp8qx ) ,ljuz;aquut +/ierature 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 isobaric gv1 nr b*ms-2f/g9ea15zfu r7e rwl +eprocess. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the s+fg5r 9* wr b1zrea-vnu7e1mlg/2ef heat exchange during this process?

  07.40: Which is not true of an isochor7*w frhzz*-fl ic process on an enclosed ideal gas in whic h w7zf*r-*flzh the pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabat4cajbh wmsyc9a( 34g:l + avm-ic process. The pressure and volume initi9+gham wv msblj44 3c:c- a(yaally 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 identii )5joyz. gx kz80v3mmcal samples of the same ideal gas are in 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 the hii3j xvm o)m.5 kz80gyzgher 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 processes pe(l 9ei-xi nu1lrformed on a mo-x 1eiil9(nulnatomic 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, which one of the folnwl1:(loa 8fu. ef9 t+qi-h uw 91inyglowing reversiby1 u:a8+ftnf i1gl(qw .-9ohel9u iwnle processes has the most heat associated with it?

  04.45: Container A has a sample of mon.7-yx/; awlri/7qncwzgv 6b 7dl+zmlatomic ideal gas, while container B has a sample of diatomic ideal gagww b.7l;zilrl vya+nx -z/cd67 7qm/s. 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 monatomic ideal gas has pressure P , voluno40 h zffx+( aiskk6sp 3cw- d71;t.c ga6qweme V , and temperature T . Which of the follnahwdpa+wx.fz7c6c ;1k q e-(t4k gs06f3iosowing processes would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic idealgf5 2 .zx/dc/: lwa wadm7tij- gas are to undergo reversible processes. Which one of the following choices is a correct statement about tgid /t-aw:l7z2j fwc5. ma dx/he heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling