15.25: A gas undergoes the unusb/o3; nhexrp:fn,k -;:qqprm ual 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 z-.c1 zcgy:epcee(+ ofrom a pressurized cylinder, the stream of gas feels cool. This is becau cep:c.(-eco1 g zye+zse

  94.35: A gas can be taken from state a to c g/ xmvq3pmr5nv vy 82lwj86i9by two different reversible processes, a→2x9li58 p38rjvym/gqv wv6 mnc 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 during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the flueh:vy z2 0**+uqtor5 3jc xprocess 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 r :uvzfyh uj5q e0cox**+23lt 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 isothey9 er;/cfm5gb8rqi0b rmally compressed:

  97.15: Which of the follow4wqxe ,l;+1iullq,c y ing is always true for an isothermal process of an ideal g+4 eluli,wq,ql ;yc1xas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal 4 g( slrxh1-5mdgy u8bexpansion in an enclosed container. Which one of the following quantities associated wms 5h(1ygxd 8lbru 4-gith the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion dh4 qw27sm*ljuu55 lh followed by an isochoric cooling. Which of the following statements must be true af5*h lqmh7l5udju 42s wter the completion of these processes?

  11.44: One mole of a monatomic ide ps4r sjr8) jg8htb-e2al gas 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 rep)4j hsrjt e88 s-2prgbresents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. Durosci 2jo/zgf.e8 5)rming the process, the gas performs 80 joi).zgoj5 s/2 8c efomrules 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 procehd6) n n/;du9ulu nft8ss on an enclosed ideal gas in which the pressure f6ud nuh)d;/ul9nnt8 decreases?

  15.47 One mole of a dim e6yt)t 0rf1i*0 y lt2hgjq7uatomic ideal gas undergoes a reversible adiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the 0 rui thg2 f01*qjtly)me6yt7volume 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 gasgb *fvklb u29qw6 jq66 are in equal volume containers with the same pressure and temperature in containers labeled A and B. After the processes av9ubq6f* 66ql jkbwg2re 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 differec8 jnbn.: 5a.cehb 5awnt 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 isocw 5.ac:a. njh85be ncbhoric (constant volume). For which process(es) does the temperature of the gas decrease?

  16.48: From a given state of Ptm:o /xa fu5s., V, and T for an ideal gas, which one of the following reversible processes has theo5/um t:saxf . most heat associated with it?

  04.45: Container A has a sample of monatomic ideal ga8vhru( /aabhe xr5 *w *..juk+nbg 9kas, while container B has 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 undergoesxanw uhhevr5kg8.ua/9 bkba r*+. * (j 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 pressurlman f wf. 0fd l; s8*(.4bc;zqo6bvmse P , volume V , and temperature T . Which; 6z4bof (sd*.qsv amcffbn8lml w0.; of the following processes 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 rev77z th3u64vqzo l84qoktauw; ersible processes. Which one of the following choices is a correct statement abouztz3qk 6luv4ot;q huo48 a7w7t the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling