15.25: A gas undergoes thg d xhc( 5pa7nve.k3n.e 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 fromr4q bl9.+v57qa-zjtu nitv s( 3) jd v7zqtn5u a pressurized cylinder, the stream of gas feels cool. Trnuq4l (dz s qi+ t.vz)7n vuav5t -9t7q5bjj3his is because

  94.35: A gas can be taken from state a to c by two different reversible 7xg )lb4 )ezmhifgyy9 /q3np3processes, a→c or a→b→c. During the direct process a→c, 20.0 J of work are d/9gfl4p73xyq )ybgzm )e3 nhi one 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 gbs8tgqy n)k4uj2 z3w3raph shown, in 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 adde8ng w 3sku2 j)t4b3qzyd. 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:r4iuh cmxc :;o7th-m,

  97.15: Which of the following is alwaysof1e 7.zpb0caex: ek19rufyf :b+dh 4 true for an isothermal process of an ideal u.o 0ee zf9:frb:4dh+ba x 7kfyep11 cgas?

  13.31: A monatomic ideal gas undergoes a reversible isotijivx d3q 0g+7hermal expansion in an enclosed container. Which one of theq03 dx7 ivi+gj following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergls ok :bh9,0w b0+m o*kdpl)vgoes an isobaric expansion followed by an isochoric cooling. Whic :hk * lmp,bkb+gosld0)w 9v0oh of the following statements must be true after the completion of these processes?

  11.44: One mole of a mona5 qqp1 i(wvtmm2n+xca a7dr,.tomic ideal gas undergoes an isobaric expansion. In the proce7(mn +2rpa q1d , qca.tvmwi5xss, 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 +gi+uaw) rm,gi x7zb-an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat exchange during thisa g,z m7 ii)ugbw++-xr process?

  07.40: Which is not truer mauc:sni3 0b;c4yh3 i7q1z,si 7n da of an isochoric process on an enclosed ideal gas in which the pressurhsqaczic,:m01 bs3 ar73i iun d 4ny;7e decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adikhrlu8 0sqxc - kt4s-/abatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the volume is halved du/ q4csr- lxh k0-ukts8ring the adiabatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samples of the same iz52swhos qzw +65(ofideal gas are in equal volume containers with the same prhw5+5 fio6zzs o2 qs(wessure 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 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 processpe 1. blmw.h3 satu/ 5 ohbyg()fu3(eves performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process C is adiabati( h e)botp1l b5 vhw/f.ue.3(saumg3y c. Process D is isochoric (constant volume). For which process(es) does the temperature of the gas decrease?

  16.48: From a given state5 w+-eqcwuagcj 69 x1v of P, V, and T for an ideal gas, which one of the following reversible pr q9xgc-eaw cv516+wjuocesses has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, )x*asd84 ngh cixua+v(k+ s8a)es lc 9while 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 u4n9aaxdccilse v(s88 g)kas+* )+h xadiabatic 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 haobo1leqe ja9l96h5n; 1 a4e j/kvmh 9ls pressure P , volume V , and temperature T . Which of the following processes would result in nh9m16v1 lh/jlaaeo59beq; k9 lj4eothe greatest amount of energy added to the gas from heat?

  13.48: Two identical samples u :+6nuy-;a,dgbfu bjof a monatomic ideal gas are to undergo reversible processes. Wfbu bagu dj+;-,:ny6uhich 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