15.25: A gas undergoes tof2qxb e 58e5whe 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 w *dq4-cn-knxn-a8r mswz ;z( feels cool. This is becaw4q dzw-cm8snr-n; *nz-xk a( use

  94.35: A gas can be taken from state a to c by two different reverp,huf8mfu,ly g .b/v 3vu z3e.sible 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. Durin3/3, bu,p.gye8 z huv.m ulffvg 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 thzm1;rfasu:v cm9 w3/ce 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.a; c uzfwr/3v :1mc9ms In the process of going a to c to d, what is the total heat added?

  96.22: When an ideal gas is is/j o-e/bz gfg7othermally compressed:

  97.15: Which of the following is always true 9sqr,k e1:bj n:xw +vjfor an isothermal process of an ideaw,bers:1jn+:9 xkvqj l gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansiouwf(js1cc r4mq 7)d h8:yf /cmn in an enclosed container. Whichucr )fhf1qjy m (7wcmc4sd/8: one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isochork:f cf;qa8t xlh1 bxg):jjsu.y/b w 43ic cooling. Which of the following statements must bexth4.gj laffq;/ y bc3xwu ::k)sb1j 8 true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expan 9xno -d+(rg rm7sz/umsion. In the process, the temperature of the gas increases from 300 K to 500 K. Which one od/mn-g7rr + osuxmz(9 f 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 proc8 , qnb (y tpqa593tt8zdwe2xoess. During the process, the gas performs 80 joules of work on the sur( tt8ne 8b,5 aq2dx ty93wpzqoroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true ofi*gu4 jitx 04p an isochoric process on an enclosed ideal gas in which the pressurei4ix0u j gp*4t decreases?

  15.47 One mole of a diatomic ideal 0;(e 4wlxp rvogas undergoes a reversible adiabatic 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 surround4oer ;lx 0(vwpings?

  03.48: Two completely identical samples of the same ideal gas are in equalw( h.oxo/s,0.f ldvvdj ha)4 d volume containers with the same pressure and temperature in containers labeled A and B. After the processes are,)wv.slohad/0xhvd f4 (d .jo 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 different possible reversible pro) c rih6 zhd+,m6uds,hla dg0/cesses performed on a monatomic ilh, ,h0hsa )cd6gzim drd/+u6deal 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, i)0uq8jd9l qmfg uglk,s 3(8m V, and T for an ideal gas, which one of the following reversi8qiu(3),mlgumf l8dkg0 9qjsble processes has the most heat associated with it?

  04.45: Container A hasik,vr;s2o -2v )iq hwry/h.vpti mc46ho ;l4l a sample of monatomic ideal gas, while container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume,4tlwi/c6,vpo 4iom;q)yhrk h ihlr2-2.v ;sv 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 V , and t8: c,wat:xpnq(9 spemi xc9v.udt2 w8 emperature T . Which of the following processes would result in the greatest amountvp, ui89x : ep(:mq.cwc8dtwxas9nt2 of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas aret.dq r.kmdd+l i -uncs+c 572a to undergo reversible processes. Which+.a2m7ic.d r clkn -u5qdstd+ 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