15.25: A gas undergoes the unusuamezo eu(m 0v-n6by;n0l 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, u7z*nhya9bx8/o 7 tgw the stream of gas feels cool. Thisanbho7*gz8 / t u97ywx is because

  94.35: A gas can be taken from state ai3szle3a5ff:cm8 wicf:/ 9 vk 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 iwvf i3kfms:lc5c8e3 fz/a9 :.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 going from at7oa)y2x ju0 m to b 60 J of heat are added, and in the process of going from )ju7t yoxa0m2b to d 20 J of heat 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 iso1) 0om:rnu eikthermally compressed:

  97.15: Which of the following is always true for an 1/9axi, b4snr5 hpka tisothermal process of an ideal ga nba5t, i9xs14hr/pkas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansion in h; v7laa3t)n3.o ekfx an enclosed container. Which one of the following quantities associated witk.nfv t;)e3la37 xhaoh the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion follo14qagwmu 7a a2wed by an isochoric cooling. Which of the following statemenma 4u21w 7qaagts must be true after the completion of these processes?

  11.44: One mole of a monatom*hr2)kk.9rva zw- npoic ideal gas undergoes an isobaric expansion. In the process, the temperature of the gas increases from 300 K to 500 K. Which oovh. *) 92zknk ra-wprne of the following choices best represents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergolpk 5h1;2vws 0e fs)bz9qy 2uhes an isobaric 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 this prhzyqv0 ws2eh5 fb2l9usk1 ;p)ocess?

  07.40: Which is not true of an isochoric process on an encloselda- 71p,8ftmf 3e;q9btzoal d ideal gas in which the pressuzp 18,;afbf9ltoe7 l3- dq amtre decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic procuuib 1odtn34xz9br -yo5 + gv7ess. The pressure and volume initially are oo1ur7dzv3g -bbtix 4 yn5u9 +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 g 0v -nthm2r 8rcmz6c5tas 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-8m05rc6 r m2vcnt zth 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 foursq4/y6 x/tko xnln6-3l)sot m different possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant4xk nnyt/lltom q6/so ) sx6-3 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 oi4o61s /oijjjf the following reversijs6 jo/i1 oi4jble processes has the most heat associated with it?

  04.45: Container A has a sample orj vuieytk3ttzkt1 29o7qdi/-9w0* m f monatomic ideal gas, while container B has a m0tdtwveo1k9*i zt7kt 9-rq/j 23 iuysample 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 pressure in half. Which sample of gas is now at the higher temperature?

  08.44: A mole of a monatomic ideal g7c3l+q fjsgy +o3dl*n as has pressure P , volume V , and temperature T . Which of the following processes would result in the greatest amount of energyn*fl7j +3csy q3ld go+ added to the gas from heat?

  13.48: Two identical samples of a monatomic idg lxgz +/ndhxh)72r 0heal gas are to undergo reversible processes. Which one of the following choices is a cogn/x0xr2 7 hld g+hz)hrrect statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling