15.25: A gas undergoes the unusu16hn ruu-ccrl 81,blr : tlp/xal 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 ofv3 tb l89zm:hc gas feels cool. This is bt:3m9v b8 clzhecause

  94.35: A gas can be taken from state a to(a e zbvxew p*n9i1ygf -+818usnfi2o 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 systemvspgonfifxuy1*nb-98e2+ (w 8e 1iaz. How much work is done by the system during a→b→c?

  06.26: In the Pressure versus Volume graph shown, fp +e 3hjlk595t(ew1ewku(mjj1 h+j n 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 whwhmel3pj9kjk tfu (51(1ejn5je ++ 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 yai3v8yw) *w0,hht rdis isothermally compressed:

  97.15: Which of the following is always true for an isotdu6l zgs+1)zehermal process of an ideal gas?zd +e61gul )sz

  13.31: A monatomic ideal gas under82-u kpvnuhk/eopgd 4 ,j3dw,goes a reversible isothermal expansion in an enclosed container. Whpheuo ,28d,k4j k v-dw p/g3nuich one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expanejk;ewv3 hif ,/d 3//gzh 7(wjcjw.dhsion followed by an isochoric cooling. Which of the foll fe,.g3j(w/zhiewd cjvkjd;37 // hwhowing statements must be true after the completion of these processes?

  11.44: One mole of a m5a+ u6l4 ldt)biiu/pc10l;ytnc mrr;onatomic ideal gas undergoes an isobaric expansion. In the process, the temperature of the gas in1url /yiiupc6tmd);+blr4 5t; ancl0 creases 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 undergoe:z9qh6)o qa o y90pcrfs an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat excahp9foyq) 0oz6cr : q9hange during this process?

  07.40: Which is not true of an isochoric ( rhpys a,+9j4c2*: cek 6 qmmi4ox a7w)oibalprocess on an enclosed ideal gas in which the pkpe694ms*aa i j 2i ()rwq+cm:b4a oy ,ox7hlcressure decreases?

  15.47 One mole of a diatomic ideal gas undergoeoo ;)bx0l3omls 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 thelx3 lmb)0o oo; surroundings?

  03.48: Two completely identical samples of the same ideal gas are in rb j, )+m7os 7:wik5lfm;cvjuequal volume containers with the same pressure lc)r: imj7s7j;vw+5 ,bo fk muand 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 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 proceo p2:2rko)d,qjg p dd+sses performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process)p r2pkq2od:,do dg+j 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, V, and T for an ideal gas, b . (u/egndo :u8qcun(which one of the following reversible processes has th(ue8d b nuguq:.co(/ne most heat associated with it?

  04.45: Container A has a sample of momb0uu)m:9 ao ws9fzc, natomic ideal gas, while container B has a sample of diatomic ideal gas. The two gases s ,su9maw0fmob9c u):ztart 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 has pressu+yk4p6w*qe z- ig503f0 jqhyd0 bmhwbre P , volume V , and temperature T . Which of the followkmibwh*0d+fghwb qy5 0j0qpy4e3 z6- ing processes would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic id)yvo)mq*-ifuc.1 gpd eal gas are to undergo reversible processes. Which one of the following ccvy.quoi-pdm)*)fg1 hoices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling