15.25: A gas undergoes.zg- 0y.dpdacbsi 1h9 the unusual 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 from1 ;3*j):4knnfjfpk fml k wb:l a pressurized cylinder, the stream of gas feels cool. This is:3l lbnkwm*; jj41f)k:fknp f because

  94.35: A gas can be taken from state a to c .ryzw6n g:yo.p(nk*jmh+opu 6( pf9 d 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. Hrw+ m.(o.okd6gyh9j yz u6pf(p*nnp: ow much work is done by the system during a→b→c?

  06.26: In the Pressur2(sh5) dpe9lget5j xjn.ir i/ e versus Volume graph shown, in the process of going from a h2)g/t e is 5(rj.9ildj5x enpto 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 to d, what is the total heat added?

  96.22: When an ideal gas is isothermally comprbi1xfs/zhvg2 i.wz7)rho 5b) essed:

  97.15: Which of the following is always true for an isothermal process of an op38:cqs +jfj ideal g3 fp8c+ojq: sjas?

  13.31: A monatomic ideal gas j::q(e hd.n tvundergoes a reversible isothermal expansion in an enclosed container. Which one of the followin(q.:th en: vjdg quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isoba(m t;utx1qqu 7ric expansion followed by an isochoric cooling. Which of the following statements must be true after the completion of these procesqx;(1tqt7um u ses?

  11.44: One mole of a monatomic ideal gas undergoes t fgics-*/3y ean isobaric expansion. In the process, the temperature of the gas increases from 300 K to 500 K. Which one of the following cho/fi3 *yces-tgices best represents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. During the y o;4luw wvy:5k 8g-cqprocess, the gas performs 80 joules of work on the surroundings. Which one yquv cwy wo-5l84:;kg of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric3rr*u(b 4ozut+x8kjpg fc0 7 c process on an enclosed ideal gas in which gczx uu 7oc*0+f8 j3prrtbk(4the pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabawdyyn o72kr nf x+.,o.tic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L.yn+wf,o. x 7rn 2od.yk If 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 samples of the same ideal gas ar .acsv n3 5s092vryvuze in equal volume containers with the same pressure and temperature in containers labeled A and B. After the processes are perfor zsa03vsy.25cu9v rnvmed 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 diagramkt7+y6 bw 3t1ee6nyw9jqh2 wh shows 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 isochoric96ty3+ hew2w6b 1kyetjhw 7nq (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 ideal3b) 1w s cooll3 *adi6oasc cbtug09-. gas, which one of the following reversible processes has the most heat asso9cd*6 woa alb g0s - sc1)liucb3o.t3ociated with it?

  04.45: Container A has a sample of monatomic ideal gas, mx 9i4sur6yvno+xl5;while container B has a sample of diatomic ideal gas. The two gases start with the same i 9rs4+5;xomvu6xiynl nitial 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 pru+yf6s7e81k ; vkekuq essure P , volume V , and temperature T . Which of the following processes would result in the greatest amount f+ uk1k kqe8vs; y7eu6of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are tyhi n5bx9e6)ro undergo reversible processes. Which one of the following choices is a correct s yr6h)e5nbi x9tatement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling