15.25: A gas undergoes tu x(5u urf3.wxhe unusual 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 pressurized cylinder, the stream 3gnbpar5r w-9(l(qxp of gas feels cool. This is becaus53xawg(brp9p r(l-q n e

  94.35: A gas can be taken from state a to c by two igqju; b:lr.5k74joak j v;qqp;4 z7qdifferent reversible processes, a→c okub;7.4z kg v 7jj:q;q oq;5ilrj paq4r 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 process of going h8 c 9z;nbr,tw+hq5x tpfz2p6v.ul -kfrom a to b 60 J ofwk 6l8uhv-pzrth9.t2cz xq+5 p,; nbf 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 g,fkx+nd x+p+0 k6ard das is isothermally compressed:

  97.15: Which of the following is always true for an isothermal process omaadp.9 -l5vf,2bf amur 5d)rqf 3pd5f an ideal bm 5) 9u3pv .qfa-,r5afpld 2rdad5mfgas?

  13.31: A monatomic ider ar*tqs4np9h- *h5) bfvt g/mal gas undergoes a reversible isothermal expansion in an enclosed container. Which one of the following quantities associated-rp ma r htnqsv5h**tf9)4b/g with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isochornt vn:3n*3uj bgosz3;ic coolit ngbn 3u v*n3s:j;oz3ng. Which of the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an iso;n)+3tet sl jupf 9se5baric expansion. In the process, the temperature of the gas increases fromel;s+sfjp u53 ent t)9 300 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. During thpa* d9v)ds;q ie process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best dess;dv*ad9 i)qp cribes the heat exchange during this process?

  07.40: Which is not true of an isochoop rsz(1l(a,oric process on an enclosed ideal gas in which th(op1sz aro(l, e pressure decreases?

  15.47 One mole of a diatomic ideal gp wvb:f3+qk0 jas undergoes a reversible adiabatic process. The pressure and volu3kwbjp 0:f+ vqme 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 surroundings?

  03.48: Two completely identical sakx cdc4jy9,03e oo8 okmples 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 higher temper3dek8c4jo,cx9o 0 kyoature?
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 possi4scze frtgj8(c9q 8rvlu*p0,z qy5 f, ble reversible processes performed 8e,u8r*jrf0tpg 5s cy9l(qzzv4,f cq on a monatomic ideal gas. Process A is 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 fo.qiy4s j 462j;i ocohillowing reversible proces 4soq;.c4hi6ij y o2ijses has the most heat associated with it?

  04.45: Container A has a sample of monatomic idea6 f.p (r my5dtcquur7.l 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 r76 rmqf5rtupu(..yc deversible 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 press z3st )mxnt+8h- cx45il +dnszure P , volume V , and temperature T . 5n3md c)i hltsxsz+n 4x-z8t +Which 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 monatfexago. vrl:k . oe fe42c/) 446w fmy8fapnb4omic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about t.4f.8)n gk p4exe oyefoa/fw f4l:vmcb2r64a he heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling