15.25: A gas undergoes the unusual om3h-5l*aj17o5v6fl :qy xi br sdyn. 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 pres3az. : zwjmf d(oo0+itsurized cylinder, the stream of gas feels cool. This is b:o(d itmz0f .za+w j3oecause

  94.35: A gas can be taken fr qmbpd16 9-npuom 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 add1 udnqp 96pbm-ed 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 grv-,fi *z i9mrjaph 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 the process of going a to c imvf *jr9 -,izto d, what is the total heat added?

  96.22: When an ideal gas is isot2oyd( hawqrnm6k 70xu z,5p.thermally compressed:

  97.15: Which of the foll /d 7si29nxakwowing is always true for an isothermal process of an ideal gaai knw 2ds/x79s?

  13.31: A monatomic ideal gas undergoes a reversible iso.kbo h5t tf-,qthermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value of b.5q, fo-kthtzero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an 3ip1px cj tglt5m-zo( h6*rd/isochoric cooling. Which of the following statements must be true after the completion of these procix /tdz 5r( 3gh- m1pptj6*locesses?

  11.44: One mole of a monatomic ideal gas uwp8te*vhb 1 2 ogut8m:1n2b-xya+gt 8tw4pgn ndergoes an isobaric expansion. In the process, the temperature of the gas increases from 300 K to 500 K. Which one of the following choices best represents the amount1b t42 wngy *g8a no2etp bx8htm -vgt1w8u+:p of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. Du l14;-jd0gl/g ob qwnc2p h3+x9 ta w1tttc6zdring the process, the gas performs 80 joules of work on the surroundings. Which one of the following statementsc6xa qd 3pz o2/4lg-cl0 91w t1dtbgnt hj;t+w best describes the heat exchange during this process?

  07.40: Which is not true of an isau w6ulpqv,.t:o / z b*(/qfpxochoric process on an enclosed ideal gas in which the vp6/ul oa z,uxqpfq:b* /(w.t pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a re.o/ mx8s1jq8hk m 7mhdversible adiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If. /mxmhk7 q8d8 1somjh 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 samplhr1rz g jja2:7es of 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, which is at the higher temperat rjjahr12z:g7ure?
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 showe,h6;a- 1yqf abu v od;t5b6yis 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 (constantauaoed;;hy 6b15bq vf-,it6y 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 gub h7tb8f::qfas, which one of the following reversible processes has the7b thf:q8uf :b most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while container B haskz )i 8/2w1fxvuge5bc 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 reversible adiabatic process that cuts the pressure in half. Which sample of gas is now at the higher t/x kgu2ewci8fbzv )15emperature?

  08.44: A mole of a monatomic ideal gas has pressure P , volume V msyotzw,- d 0*, and temperature T . Whic osyz-m*0,dtw h of the following processes would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical sams5,ey b s0;oqz-n 2hroples of a monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about the heatzey r, onsh;-05s2b qo associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling