15.25: A gas undergoes the unusual prky/ (;myl;b ntocess 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 -;,/wsv2jn4rcd yqzp3 w*qx mfrom a pressurized cylinder, the stream of gas feels cool. This is becau r4c/jz*2m;qpxws3,y -qnd wv se

  94.35: A gas can be taken from state a to c by two differtxmo)6r vj m4x1h6hg 4 +jh,dment 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 xt 4 +h)ovhdxm hjgmj661,mr4the 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 6g4tv4cx 9si sgraph shown, in the process of going from a to b 60 J of heat are added, g c64ssitv9x4 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 compressed ebcf7fvu y87yyz,hh 2 5;ou1u:

  97.15: Which of the following is always true for an isothermal process342;l, drbce zttu um2k7w*ub of an ideal gtlc2r7kz2b;um4 b,t w* d e3uuas?

  13.31: A monatomic ideal gas undergoe:id.kmrt a9m( 0qyhl: s a reversible isothermal expansion in an enclosed container. Which one of thq(0ta:yi. r :dlm9h kme following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes anm4ec 21)wcaky is p92v isobaric expansion followed by an isochoric cooling. Which of the following statements must be true 1ykpca2ivce)4 2smw 9 after the completion of these processes?

  11.44: One mole of a monatomic idv2uw,y 7 g:ozseal gas undergoes an isobaric expansion. In the process, the temperature of the gas increases from 300 K to 500 K. Whichy2,vgs7wuo:z one of the following choices best represents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergo-x.zwgprig62qp9;ijs 1kh a+bn - m(qes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the followm6 -;kq-2gps(aqwipjrg +z9inh.xb1 ing statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an e1 ;otj(jpolk 7nclosed ideal gas in which l p1j7(;oktjothe pressure decreases?

  15.47 One mole of a diatomic ideal gas undergo3 xqs(:ru upa6es a reversible adiabatic process. The pressure and volume initially are given:usr 63uaqp(x 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 samples of the same idealy b1o7 jt.jghf fs*7;x 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 hyjj*s. hog7bx ;t7f1figher 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 ph5 n5dhld1w8m(,tdj l rocesses performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (conh(d5t dhl 1d jnm,5wl8stant 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 u0.vn nh8huh/h y*pr 1ac5t5r following reversible processes has the most heat assoc0cph8trvn n5 .r a1huyhu*h5/iated with it?

  04.45: Container A has a sample of monatomic idealehx1w0 9-nky w gas, while container B has a sample of diatomihey1 0k 9wnwx-c 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 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 ln z 5jdq)qy4gvj ox9(n7(2fepressure P , volume V , and temperature T . Whn n(xvqoy59e27j(g qjlf)d 4zich 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 monatomic ideal gas are to u9qa+c x(dm- g17 kt7pai )cbjqndergo reversible processes. W-1x7 aq9tqk+a ccdmb) 7gj(pihich one of the following choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling