15.25: A gas undergoes yi5 +w q( )yqil0*gvbythe 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 strgl gr+-)homf2fnyf6 r )f8t2u eam of gas feels cool. This is beca) fnrg+mh)68urf -fft 2gloy 2use

  94.35: A gas can be takenyhwx.l s3t9+c/wm xz24e woui 3 wxe,* from state a to c by two different reversible processes, a→c or a→b→c. Duringtyw 3 .9o2+w 4zxu/3cx,lx es*whm ewi 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→b→c?

  06.26: In the Pressure versus Volume graph shown, in th5c)le k k5pjo6e process of going from a to b 60 J of heat are added, and in the process ofo 5)lec5kkp6 j going from b 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 isothermally compaai2c+nn) x +vressed:

  97.15: Which of the following is always true for an isothermal procespp6wzv5je0i r dlkd3 d -m58i5nv(b (os of an ideal kodd3v pe(i6ij8l0 5n5 - pwzmbr5vd(gas?

  13.31: A monatomic ideal gas undergoes a reversible isoth7 ztofw14pvb30e8i 0p9: hikll zm0nzermal expansion in an enclosed container. Which one of the following quantities associated with the gas has p tzvi8:lkz 1bo4e9piwl7n 00f3h0zma value of zero?

  09.33: An ideal gas uuo oueilj;:;ibs y::8 ndergoes an isobaric expansion followed by an isochoric cooli oji u yo;:silbe8:u:;ng. Which of the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion.h:zd;jnt / -.xkc,kg v In the process, the temperature o,:x.c -kzdj;vk t/ghn f 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 q(rs gd ( 2zx*e5g5xmruno7wz v9v,(qan isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one ofuwogv rqe(zr*5 m2(qx9n5 ( x gdzsv7, the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclomtr 9;vzu)-rtz fkt:- sed ideal gas in which the pressure decreasetfurktvm;-z-) t9r: zs?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiayznl-g; u6vb )batic 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, howzg ;)6nlyu -vb much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samples ofp;om)9o pds3n the same ideal gas 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,n3;d )opmosp9 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 poss0h dgtxk1(/km ible 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). Fork(td mhk0 xg/1 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 of tkdzjeb p1fc ;6.m2*pobnavq6( /qkq3he following reversible processes has the most heat associated with it12 /*3mfk pb6p.n6bq ;ojvqek zq a(dc?

  04.45: Container A has a samplhc 0y at/8levpffpsj .c+6(*ikc )npt2 oaz2:e of monatomic ideal 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 rfh c l. sa8jfp2oz:0()ti/n6 vkpta2* cp+ecyeversible 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 press2lqla *nq3b ;v k(we*cure P , volume V , and temperature T . Which of the following processes would result in the greatest amount (a*lw c2;enqvbk3ql* of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic idealc /a-j0 6gz9xj2 syxwv6*kdg n gas are to undergo reversible processes. Which one of the following choices is a correct statement aby29xgk zn */w c0gvd6j6jxsa- out the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling