15.25: A gas undergoes the unusu 3boh f ju9-l50dpdtn1al 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 feels oxp ku)pb4ph* yk-fd4p(7p/ qcool. This b/qdxpkf4op-4 p pk(*y7 p) uhis because

  94.35: A gas can be taken from state a to c by t ggb bt4zn7 (u *t+q; pao,hsm:pxu4g3wo 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 p: sgu qnb;gp,(*4xma 7h3bzotpug 4t+rocess 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 thjb: d)4d6xpyvyqizp k *n5*w,e 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 ak4,y* p5:i ydv6bn* dwzjxqp ) to c to d, what is the total heat added?

  96.22: When an idealp*.7bcsfnz.)j pjm lho7fo ewhy v;0+whk0 7 7 gas is isothermally compressed:

  97.15: Which of the following is always true for an isothermal proces qqyj 3kts5x1.s of an ideal ga3qqs5.x t yk1js?

  13.31: A monatomic ideal gas unde7*fk79jq k) *bm7lwm d1jwajrrgoes a reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value of zelf*awk1 jjr wqb7 kd 9m*7mj)7ro?

  09.33: An ideal gas undergoes an isobaric expansion followed by an +oq9 ql0 8fkotgny5*pisochoric cooling. Which of the following statements nk9+g o8yqqf5 *0opltmust be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. In t 8u2hpkl;w s;(kgtehs q9 ce7)he process, the temperature of the gas increases from 300 K to 500 K. Which )se8k; wh u9p7hlc tg;ks2e(q 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 an isobaric 5+s9cnzsjc jm lds 50qv2w,t/process. During the process, the gas performs 80 joules of work on the surroundings. Which dsl 9sc+jtj0qw mn,/zsv2c5 5one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on ;1rd zu8z *tfqan enclosed ideal gas in which tru1t f8;q d*zzhe pressure decreases?

  15.47 One mole of a diatomic ideal h3,wr* 8y8dcnu+w 0wnbv p/4w9xtw kcgas undergoes a reversible adiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the volume 80wtw*8n93d+,kc4hux wv b wcwn pyr/is halved during the adiabatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical sampleal hu ic- m8nm.o-d95p8hhx- zs of the same ideal gas are in equal volume containers with the same pressure and temperature in containers lmohl umac .dizx9-88n-h-ph5abeled A and B. After the processes are 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 fouyzlhqs ) +-9 tym4*mx 25plzrfr different possible reversible processes performed on a monatomic ideal z r*psfl+5- q4lmh9 2 my)yzxtgas. 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 statfcox s;;0rz (fe of P, V, and T for an ideal gas, which one of the following reversible processes has the most heat associated w0(sf;; rcof zxith it?

  04.45: Container A has a samph:k hlq xdc :ym:49dt3le of monatomic ideal gas, while container B has a sample of diatomic ideal gas. The4hht dxklc9m yq:: 3d: 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 gas has8c/bmh *b irv5 pressure P , volume V , and temperature T . Which of the following proc/ c*vhib85mr besses would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to undergo reversibl7c7 , 4hsqay9ffdnq67qud f +ke processes. Which one of the following choices is a correct statement about the heat associaqkdy9squd+fh qn a7cf476f 7,ted with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling