15.25: A gas undergoes the7g oy6nql690 9uc axgm 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 pressurize1 /bqcbok,guj uc9j :7d cylinder, the stream of gas feels cool. This is becao7c gu,kq/c1:jub9j buse

  94.35: A gas can be taken from state a to c by two different ry7;dfacd:q 1 c;u*wfleversible processes, a→c or a→b→c. During the direct process a→c, 20.0 J of work are dony;u1; fq :*7 cwfcdadle 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 graph shown, in the process of goinge;(fa up*x/r.,w wzyh from a to b 60 J of heat are added, and in the process of going from b to d 20 J of heatw; wa/u,*.eh(fyrpx z 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 isothec)4l+ bb*pefu1)xfz vrmally compressed:

  97.15: Which of the following is alw2zv0;01 x+1 g. kbazsoxmrjlways true for an isothermal process of an idealz vm20gklbjsa. o;x0x rzw11+ gas?

  13.31: A monatomic ideal gas undergoes a reversiblok wwhrpvdav14.i0;e87 vgb :e isothermal expansion in an enclosed container. Which one of the followirwgvo:7; 4 80hkdpbvav iwe1 .ng quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes kulro63*4v4o (6at njvy n/wc an isobaric expansion followed by an isochoric cooling. Which of the following state4(3y al6nn vjt/6uwo4 vrc*koments must be true after the completion of these processes?

  11.44: One mole of a monatomic idj g g0rivy l 6t )kr43+*emtrzr9oac48eal gas undergoes an isobaric expansion. In the process, the temperature of the gas increr60t4tmog8rzcr4*y93l rk va)i g+ j eases 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 proce90 t)hazrn3lys,1hj uss. During the process, the gas performs 80 joules of wor,93lh ru0sza j hy1)ntk on the surroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true yqe p -mz3p8 bv+z.*vbof an isochoric process on an enclosed ideal gas in which the pressure decreas8 byzbz3p+ .v-mpqe* ves?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabaujfk24y7x7n weg u/ /nwe2s.atic process. The 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 surroundin2 7./xyks4e2 en njg7uwfa /wugs?

  03.48: Two completely identical samples of the same ideal gas aresd 4lv y-y6g.s 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 containerysvsy.-gd4 l6 s 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 rek7d44 *hfmlhklrw7j -versible processes performed on 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 decrealw kd7fhrj*l- 7 h4mk4se?

  16.48: From a given state of P, V, and T for an ideal gas, which one of t gletxpg1) v,.he following rev1glx) .tpvg,eersible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic id 3lwkoz;k( dl5eal gas, while container 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 preswkz dokl5 ;(l3sure in half. 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 tempe jqst*7;k,gwiq.wtuoz 9 t uc-3m6x*z rature T . Which of the following processes would result in the greatest amount of energy added to the gas frotk*69*,i7w-qg suttm.c ojzwuqz3 x ;m heat?

  13.48: Two identicalv fuzp:m* bp53 + bob0(lsfhf: samples of a monatomic ideal gas are to undergo reversible processes. Which one of the following choices i 5 f3+l0opfmb hb(pb*:v:sf uzs a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling