15.25: A gas undergoes the unusual proc;j) 1ik x s ts+ldy/0tp3bmu1zess 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.t ) u2d3jwcqy from a pressurized cylinder, the stream of gas feels cool. This is becuqj)td.3 w y2cause

  94.35: A gas can be taken from state a to c by two dif-v0ljpk4.bflb0ck 9ifq8 nkq k4d 6f;ferent 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 ikvl cl44b f8pj.fk;0kd9fk6- 0qqnb 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, isn5 f q9:*.hq fvz9kjvn the process 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 heat are added. In the process of going a to c to*hv.sv5 qzjf 9 knqf9: d, what is the total heat added?

  96.22: When an ideal gas6-stcsp 4:dlyly ar g;fn,9 2j is isothermally compressed:

  97.15: Which of the followinm b1kfhhic,0( pqumuz4,8;s gg is always true for an isothermal process of an idea,4 u1pfsihhmb(0c qu z,;8g kml gas?

  13.31: A monatomic ideal gas undergocq.s fbb3+i kapr,s; jn,2 n(ees a reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has nse. r,a ,2+c(b;j 3 niqbkpsfa value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isocs q3k;+mtq955 pnj: uzgz,fzzhoric cooling. Which of the following statements must be true after the completion of these pr:qn f;5zq3u +mz, jzktsz5p9gocesses?

  11.44: One mole of a monatomic ideal gas undergoes an isobaricca)6xonw+1 r 8cg)4f tdwk qo/ expansion. In the prow)1n/ rwc6ao +f)qx8dk4g t cocess, 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 on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. Dur 73loy;qakz ;uing the process, the gas performs 80 joules of work on the surroundings. Which one of the fol; lqyu;zo a3k7lowing statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric procp :a1;ywwxr,+.m acryess on an enclosed ideal gas in which the pressure decreap +rc yw:my;a,x1.warses?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic prosg. /t2f) pbl pdc/oosd 0;5tzcess. 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 sdd/p b5z sft/.)soop2t;l0gcurroundings?

  03.48: Two completely identical samples of the same ide d vwayp*jq:z) ckb6)4al gas are in equal volume containers with the same pressure and temperature in containers labeled A and B. After w)4bya q*djp:c) k 6vzthe processes are 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 different possible reversible processetvpceg:-eku *j2(xf8s performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process:p8uexj-( ge2 * vcfkt 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 gast p odn83bwi9(, which one of the following reversi bdn(op39itw8ble processes has the most heat associated with it?

  04.45: Container A has a sample of monatomicfhiffv e e9fetyxk.9917-3n x 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 9.t9 f1ki9xefn v- fe7 h3yfexgas 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 *ggwa;+u kk-7go ,1z fc*im+yc slfd(P , volume V , and temperature T . Which of the following processes would result in the gfck7;*ys(1z+ -k af*lidg ug,mcow+ greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are tj8vz,+2vnj ow *8kb lpo undergo reversible processes. Which one of the followinw,*8o2l zpvb jj+8kvng choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling