15.25: A gas undergoes the unusual procex .*r hklg8tqqww-a .x2a4*c xss 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 streamq4 xzb7t,z;6 llb6j pc of gas feels cool. This is tlqxc p;4lz,bj67zb 6because

  94.35: A gas can be taken frtlgz-s:3,-k6en59 q;fxj o2 hgfvnai om state a 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, 25.0 J of heat are added to the system. How much work is done by the systemz ,2hnl-ioq f3gjx tsa:5gvefkn6-9 ; during a→b→c?

  06.26: In the Pressurpbdevgq )0vnpeo9yqe;t fh+z4a4(7 8 e versus Volume graph shown, in the process of going from a to b 60 J of heat are added, and in the process of goin e8+odqqv t;0y9epga e44)vph f(nbz7g 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 isothe44 -n2npaar65d1 bjr(mqyi trrmally compressed:

  97.15: Which of the fola2jks0xc 6c 3yc,ua b2lowing is always true for an isothermal process of an ideacj 3x b2ak6 ay,scu2c0l gas?

  13.31: A monatomic ideal gas undergoes a reversible isothzzj t2:k//yiw y x;te0ermal expansion in an enclosed container. Which one of the following quantities at2 ke/x0iyzyw zt:j;/ ssociated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isochfs k2n1kz*k b)oric cooling. Which of the following statements must be true after the cofb21)s *kkn zkmpletion of these processes?

  11.44: One mole of a monat2mlj( q)m9vc67xrxa u)nh6y 0 nx v(wiomic ideal gas undergoes an isobaric expansion. In the process, the temperature of the gas cnqr)al v9xuj066n ixm2 w(m()xhvy7 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 uz)b q.;gcjde o5w(r1rb 6oi :mndergoes an isobaric process. During the process, the gas performs 80 job65iw:r o(bm ;og drc.z j)qe1ules of work on the surroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclosed idr;g gn2 /ldok89ght,yeal gas in which the pressure decrelt;dgn g,y /o89ghkr2ases?

  15.47 One mole of a diatomic ideal gasyei8 a9fan4k-z,sfma: c, o*y undergoes a reversible adiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If thc,*-ya,kasn iy zf a8f94o: mee 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 volukp99x kf luvk zzv+f+.1i:j 2vme 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 kuiz+p2vk. j lvk+19vf:f9xz 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 al .s 834gtguh.gj11y spgw/dshows four 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) does the temperature of the g/g .g3a 11ugjglts s.yh4wp8d as decrease?

  16.48: From a given state of P, V, dq b.y+7y i9adand T for an ideal gas, which one of the following reversible processes has the most heat associated w.iay y9 dd+7qbith it?

  04.45: Container A has a sampl ,orj-a y;(71wvoxihde of monatomic ideal gas, while container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, press7j 1yh, -;dw(r ovoixaure, 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 pressu gfmcc;r,v+ 7au-c :do :bt4rqre P , volume V , and temperature T . Which of the following processes would rr4d:t cuag:c; r,ofqc b7m-+v esult in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samp54j9vd-gl uht 0qy x2lles of a monatomic ideal gas are to undergo reversible process ujg0x5yll2t9 4dhvq-es. 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