15.25: A gas undergom rt ln.l64i7 +bntth9es 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 pr+ / ttla0ytqb8essurized cylinder, the stream of gas feels cool. This is becau8yt0 qb/a l+ttse

  94.35: A gas can be taken from state a to c by tw cgi); 6( iorhe;/qnzuo 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 work is done b inq;;h )czi(eug6or /y the system during a→b→c?

  06.26: In the Pressure versus a(4 yej- lwu de)p1k7pVolume 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 thep )e-w ea pu(7j1dylk4 process of going a to c to d, what is the total heat added?

  96.22: When an ideal gas is isothermally compresse889: uipqj1qtyk d 7fpd:

  97.15: Which of the following is always true for an isothermk2mv eejc9, n/al process of an idealm,c je2nk9/ ev gas?

  13.31: A monatomic idew4npi9a,yqt7 1t5q5 p zxes2nvimk;3 al gas undergoes a reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value of zerk9a mwi74e5vi,xz tnpnp53y 1stq ;q2o?

  09.33: An ideal gas undergoes an isobaric expansion followed by an(7m/ qx.zmdmx isochoric cooling. Which of the following statements must be true after the complem(m .q/mz 7xxdtion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. In thex/q 4x0 -hjmxp procehq 40/mxxp jx-ss, 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 isskgc 0kv96w /bobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat exchange during thissk06bvw9/ c gk process?

  07.40: Which is not true of an isochoric process on an ;uv 9 nzn;qsqv9sghy 7 a,q36denclosed ideal gas in which tqsqnd , 976sa;q g9vv;yh 3unzhe pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiaba q,43iowmeo2y tic process. The pressure and volume initially are given as P = 2.4qywo emi2,o30 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 htz:( y(am0(qt f 7jkp6p0eglsame ideal gas are in equal volume containers with the same pressure and temperature in containers labeled A and B. After zftpp6(y kg q0m(t: lh0 ej7a(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 f6/jz5vyz un8nour different 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)nnj5 zz/v86 uy 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 tw 0x+x ;podsz)m5 8ikv/a6tss he follodkv;mxiaw+s650 s8tsoz/) xp wing reversible processes has the most heat associated with it?

  04.45: Container A has a sampsci i/n4x* k2lle of monatomic ideal gas, while container B has a sample of diatomic ideal gas. The two gases start with the same in ks2 /xci4l*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 , volume Vmlw 8w/-geijaea yg8:0h* ej/ axf70t , and temperature T . Which of the following processes would result in the greatest amount of energy added to the gas fe08gyt*ja 0ael -/x j7ewga/8wfm h:irom heat?

  13.48: Two identical samples of a monatomic ideal gas are to undergo reversib 5ixzlz ut+d4*le processes. Which one of the following choict x i54zzldu+*es is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling