15.25: A gas undergoh)omc) serm,(esrk /8q3hxc2es 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 escapes from a pressurized cylin /-nwy :tz 7m w-orhjhz0iql 6sp3rp--der, the stream of gas feels cool. This is becaussr3l hw0 -q-wh -7- pzji:6/yopnrmtz e

  94.35: A gas can be taken from state a to c by two different reversiblefdv7/a2p54 b )e3hfncagm syx /9 /nup 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 work is done by the system during a→5/pmc)a n3/vg7nbffs29u4 y e/x pdhab→c?

  06.26: In the Pressure versus Volume grap9xo k lzb4 al5nbj 9(y*8rclo1h 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 goi 9 l4bo8kz x5*yrn 9la1cb(lojng a to c to d, what is the total heat added?

  96.22: When an ideal gas is isothermallygt8oz c7 p5xt,8 3rwxl flyr:3 compressed:

  97.15: Which of the f)wi9jl wjn:f3/r2 u poollowing is always true for an isothermal process of an ideojw2pwr39jin ul)/ :fal gas?

  13.31: A monatomic ideal gas undergoes a reversek5(vq i olo7sa;s :q-r 9k a*9c8ahpdible isothermal expansion in an enclosed container. Which one of kori8;(oq7 dk9-:hq aase9cvps* 5la the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas u5r0 /,tn( yx od7sldsz9vs7t ln4c ,erndergoes an isobaric expansion followed by an isochoric cooling. Which of the following statements must be true aft ,tlovs/95s0sd7nnet,x(dl z4yr rc7 er the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes anlodt19 v(3dgq isobaric expansion. In the proc 3t1lgvdd9(o qess, the temperature 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 process. During the 6xnx3 3mtvbfj;n ;*d aprocess, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat e t;63fn;nj xbvx*mda 3xchange during this process?

  07.40: Which is not true of an isochoric p0h 7hg,pdxzumh1m-r5 g5 hh z1rocess on an enclosed ideal gas in which theu ghpd15z5, hr1xgh7 m0mhzh- pressure decreases?

  15.47 One mole of a diatomic ideal gasqu +b1 vx4or*-3ft*ktvsypu0 undergoes a reversible adiabatic process. The -ruu bpoyvt**t4x3qf01vs+k 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 surroundings?

  03.48: Two completely identical samples of the same ideal gas are in equal vewy(s i 7:sh(nolume containers with the same pressure and temperature in (s(i 7hsye w:ncontainers 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 l .abbp)jq)86no,uh gdifferent possible reversible 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 ,lg.po) ahnbu8q )6 jbthe gas decrease?

  16.48: From a given 8y1 i) 3ajtsrsstate of P, V, and T for an ideal gas, which one of the following reversibr3yjt8a )ss1 ile processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while ebix dql6e9b v 3bhn*zt,060econtainer B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, prnd0zl69 qibxe,3ebeb 0h v 6*tessure, 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 monato/v.onngpz(x*dg s 62egk+ *dkmic ideal gas has pressure P , volume V , and temperature T . Which of the following processes would resulgn6+zps*e(2/ .ggd n dv* kxokt in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to undergo83;rhkks qd67d /zsg5wub .k hp6,c zw reversible pr6.8sub5 rdkc;3 k dh6, qzwgk/hz7pwsocesses. 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