15.25: A gas undergoes the unusual process M x.23ne nciby5$\to$ 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 pre2 ;9-d169b6jxdyhknw skwl iessurized cylinder, the stream of gas feels cooly2db6l nk-e6w99xij h 1w;ksd. This is because

  94.35: A gas can be taken from state a to c by two 6fe-y;cq k) cx+l +udhdifferent 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 procf)ql6 k hed-yc;xcu++ ess 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 Volu i g9czhf-fo,r6h/,5u z jqpj1me graph shown, in the process of going from a to b 60 J op/r1o9fq,hj gujh6, 5- fzczi f 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 compfdu ew2s3 juj t t4n1+k yh+v.z;0r)lmressed:

  97.15: Which of the following is always true for an isocx:j5/n ;ya.lsaj o0 vthermal process of an ideal lv/0jo: sc n;xja .ay5gas?

  13.31: A monatomic ideal gas undergoes a w vx0n-g- ai5w 9uf;vsv k0eo9reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value of zer5 sw9-a9u;eikv0w-g0vvf o xno?

  09.33: An ideal gas undergoes aj s6i1g 2jfvrfi4lj fg *x6y7+n isobaric expansion followed by an isochoric cooling. Which of the following statements must be true after the completion of these procej6ijr*2fj147l v g+figfy6 xs sses?

  11.44: One mole of a monatomic ideal gas unders7ukh3/c* n 4dgu qvjb9+zqi8 goes an isobaric expansion. In the process, the temperature of the hd43 u87 k+ qbgcinj*qzvsu9/ gas increases 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 undergoes an isobaric process. Dul k uqs3wup0hn4 la72)ring the process, the gas performs 80 joules of work on th)4ks l2 a0l3hu7qp unwe 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 1v9lw(6j7ocrmb ck;g /8jp b6ht)mfo9 swm g-an enclosed ideal gas in which fwm(g/jc7 mksgo1b-rj )66l9m8wv;to chbp 9 the pressure decreases?

  15.47 One mole of a diatomic ideal gt:k8m9ra:.0+eo n edgqr ddx( as 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 the adiabatic process, how .:e :dr 0mqd+g x(r98 tekodanmuch work was done on the gas sample by the surroundings?

  03.48: Two completely identical samplesi 9*dzs3fz4mee8,boc 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 performed on the gases in containers A and B, which is at the higi,4od8 zc em9e3b sf*zher 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 poss)s:earu8, be+o(: gjed o1yz sible reversible processes performed on a monatomic ideal gas. Process A is dj:8ozsr )y +:1gsoe,ebeua( isobaric (constant 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 state of P, V, and T for an ideal gas, which one of the foll ls*t//mhg72 2ity twlowing reversible processes has the most heat associated witt*syl/ tit2m/ hw2 lg7h it?

  04.45: Container A hal jakg)h 2( vk;z,:xkas a sample of monatomic ideal gas, 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 undergoes a reversible adiabatic process that kak h av zjg,l()kx:2;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 x uv hs8b,6yv,, volume V , and temperature T . Which of the following processes would result in the greatest amount of energy added to the gas from 6sxv 8v, ,yhubheat?

  13.48: Two identical samples of a monatomic ideal gas are to undergo reversi;fc k98qzhr5 xble processes. Which one of the followiczh;8 qkf9 r5xng choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling