15.25: A gas undergoes the un/s (g v2 d7xpaztzn,0nusual 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 from a f-u5d uh1s nv3v9o/w rpressurized cylinder, the stream of gas feels cool. This is becausfh9vu rd/o u1w-35n vse

  94.35: A gas can be taken fb*zabhsl *j(a( m *i7srom state 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 *(as7i* lahszb jbm(*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 process of going from om..wog k sgzv,a);x, a to 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 o,,akosv ;x zm.g.w)g going a to c to d, what is the total heat added?

  96.22: When an ideal gas is isoth bxm(n-tb*o7 p(x h bhyp9)as.ermally compressed:

  97.15: Which of the following is always true for an isothermal process of an ixhtp h5* t/6pxk(4g fqdeal t hfg(* tq6xp45pkh /xgas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansion in an ek04t ; m*p)uqjn z7joapij 2y4nclosed container. Which one of the following quantities associated with the g *j) 42z;ji 4qp7auj0tm yknopas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an 9mk -nz/hs1en o 20sowisochoric cooling. Which of the following statements must be true after the completi-nzkhsmos/ 1 0 2eo9wnon of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. In -*yepn k7 .zixpk74 lithe process, the temperature enkykip7xl7. piz*4-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 on the surroundings?

  14.46: A monatomic, ideal gas undergth7jm7 *e+bjd ryp s*.oes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings.h7d*+ 7ej yrmj*p.sbt 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 idea-bwh6: 6cb:n c8ayqm jgy0+ rvl gas in which the pressc:-q 6 gym0jv6w:abr8+hcnbyure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic pex 5mh;dx j-uzo15j3process. 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 sample by the surrxp 1x3-j5hdej5mu; o zoundings?

  03.48: Two completely identical samples of the same ideal gas are in equal volumdq-7s fpp7l:we 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 l:7sw7f dp-pq 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 processess ;7sg a;up-:fkyo pv;97xxos performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process C is adiabatic. Proces 7fgspo9 ua; ;kvxx7-:;p syoss 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, uh-,ih duwp1 0which one of the following reveiu0- uwpd h1,hrsible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while contaiiy3h+ .nt6p 7wyb enxuv: ue--ner B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, pressure, and numben+yneb6 -:wevty ux.-37huip r 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 , vaf2yh.bcgt+xcb s (6g0 9-e saolume V , and temperature T . Which of the following processes would result in the greatest amount of energy added to the gas from b(a0.hg92c b c 6x-fy+stsgeaheat?

  13.48: Two identical samples of a monatomic ideal gas are t (hz (hmxt/lk4o undergo reversible processes. Which one of the following choices is a correct statement about the heat associath(zlh 4xkt/(m ed with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling