15.25: A gas undergoes the unusual process M j2t4yn6gsr 5s $\to$ 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 streamx o me4h2b 2vt(j(,zqr of gas feels cool. This it 2h (jebrqv(2,xmo 4zs because

  94.35: A gas can be taken from state a to c by two different reversible proc4 ( -ncw7j)tnzith(dk esses, 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 system durin(7z(wjh)n ck- ttdi n4g a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the process of going from (2am7oc xwpg,a to b 60 J of heat are added, and in tcmoaw2 7 x,gp(he process of 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 isothermalu;s3 wob(kka8ly compressed:

  97.15: Which of the following is always true for an isothermal process ofqk 1 4wkk2b,cjuf)vtg5q 49cf an ideal gag1kj qvtkk )44wbufc9f 5c ,q2s?

  13.31: A monatomic ideal gaay t- bzb.t4c1kr9;wrs undergoes a reversible isothermal expansion in an enclosed containe1craw-.z9kr; 4y tbtb r. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric e.n r28s 0owffbxpansion followed by an isochoric cooling. Which of the follo2wrsn8o fb 0.fwing statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal zj2)o7lni 3okgas undergoes 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 az7k o3 i2lojn)mount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. Du .h xcjqa3tkh,9d*ws 7:juz 8rring the process, 8hh:9juzrwj37q .ktc,x* dsa the gas performs 80 joules 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 ideal gas in whs .* sc3tmrk 9yxxs;(zsx .kf0ich the pressure decr 0s3xkzt( ;.sr.sf*s 9kxm ycxeases?

  15.47 One mole of a diatomic i0p r5hzb rl6t3deal gas undergoes 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 th6r 5b3rhl z0pte adiabatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samp3; v gijocs1k+les 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 areio3;g+k c js1v 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 pc 4d)cvuf(r ku4-*dkd rocesses 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).*4ddu vc) rkd-uf c4(k 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, which one of thiae*y1 qr/ ,dle following reversible processes has the most heat associated with i*a/e ,ldrqyi1 t?

  04.45: Container A has a sample of monatomic ideal gas ;e; ;pncc2 g8bp8-nbx)bw qac, while container B has a sample of d2 bn;8gc)- cbpb; a;wqpxc8eniatomic 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 temperature?

  08.44: A mole of a monatomw9s40i j4vlsg nwk3 +eic ideal gas has pressure P , volume V , and temperature T k4 +ng sw04je3vwil9s . Which of the following processes would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samplese,5eg: (mhuv h of a monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statemehv ,gh:5eue( mnt about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling