15.25: A gas undergoes the unusual process M 6kt k/5a6zjq p$\to$ 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 cylind8fmq:3wb9 rq her, the stream of gas feels cool. This is bebw9qmq:3r f h8cause

  94.35: A gas can be taken from stavr akmyu y8+oiul5lt gs* j6u86:t30bte a to 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 ykt3*l68 8mab go56sjluytv+u0 ir: uthe system. How much work is done by the system during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the process s.d-b aos7me 9of 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 ar.s-ae7s9 bodm e added. In the process of going a to c to d, what is the total heat added?

  96.22: When an ideal gas is isv r nt5epu;x+a8 7*leqqu;oo) othermally compressed:

  97.15: Which of the following is always true for an isotherm o,i wvor,m. y0zpd7q-al process of an ideal gas?yr,mo-,. o 7id 0wzqpv

  13.31: A monatomic ideal gas undergoes a r 0e (qzy:n. l)ygrrpq.eversible isothermal expansion in an enclosed container. Which: ygy.r r(n0lp .q)ezq one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isocho qm+lfo9:3sx*g: xwhjric cooling. Which of the follox sho*::lx9f w +q3gmjwing statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ide9+g (wcyvn9s(hjei;x al 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 represents the amount of work done by the gas onc+;ywhsji 9e( v( ng9x the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric px h*hnw (1pzne4e/;je.sh :wrrocess. During the process, the gas performs 80 joules of whee sph;eww:4 nnj/1(zrh*.xork 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 proces +l zc,v:o9,rffbo7mts on an enclosed ideal gas in which the pressurbfr ,zt,9+c v7olm:of e decreases?

  15.47 One mole of a diatomic ideal gas undergoe)z3 e8i56yg0ifar0o 2ahj yfc s 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 samplea)6 52ir0zyy geaifjc83of h0 by the surroundings?

  03.48: Two completely identical sqz(j1* ip3utmamples 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 are perfjq i pu1(*tmz3ormed 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 foul om;6jnyev i6 +pu (1k-hgs.ir different possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (.lk6- ji(vs1gpe; i mu6on +yhconstant 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 sfq6od*lju 8,h tate of P, V, and T for an ideal gas, which one of the following l*d 8ohuqf6, jreversible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal garx 92.j srnn8x:ofl 4cs, while container B has a sample of diatomic ideal gas. Tcnsn:rxx89 .j4 r2folhe 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 has pressure P , volume Vvbr/ /2 ul/xso , and temperature T . Which of the fo/l/vb2ors u/x llowing 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 revmj 6jdfj v+pd yc6;n77yqzs6:ersible processes. Which one of the following c6j;d+c fdpqj yyn6v7m s:z7j6 hoices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling