15.25: A gas undergo2zen d*wy a0k*es the 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 pressurjwch))ec6 0iuznaif89v8 u ,z ized cylinder, the stream of gas feels cool. This 0u,z) ucfa) e68wnjvh89zciiis because

  94.35: A gas can be taken from state a to c by two diffc h35-4cohv3rh)k :qtpk)sw l erent 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 of heat are added to the system. How much work is done by the sysr4k)3 qhvh)5h3w-kc ocls: tptem during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the procesa,+3zyaa9. ck5 dyrd5,d pgwx (ph*wls 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 d, what is 5ac.(x* +adlh wpz,r9 y, 3gwdy dpka5the total heat added?

  96.22: When an ideal gas is isothermally compressed:v;*s 4 idj c klk;l+iwhw1(emm;e96t e

  97.15: Which of the fol:n b3l4h j :v );t 0frsa/2q7gakukasilowing is always true for an isothermal process of an ideallks ;v4hs a:2ar/ ub 7k)t:0gj3qnfai gas?

  13.31: A monatomic ideal gas u uzxh xs-d(*h4ndergoes a reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with thexdu4s- (z *xhh gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansio;s 7 ut:u :qy+ssfrmae j54+kgn followed by an isochoric cooling. Whichs4 7smj :ay ru+sq+5;tu:gkfe of the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. In th ik t4cewab5x)xk.*f(m u7 4:mvv*v vp7wab:xe process, the temperature of the gas increases from 300 K to 500 K. Which one of the following c 7x7vt:evbf :a*v5xw.vmc4*uk4w ax( )kbpi mhoices best represents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaricf*f5x7k;spq k process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best x;fq k 7skf*5pdescribes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclosed ideal gas in 3mue0cr ) z d6qn+isv8which the press c6vr 03qud8inz)s m+eure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversib )03cs8 ;gnuj:r hgbwmle adiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the volume is halved during the adiabbcmun:sgj3 )rgw; 08hatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely i1tajswc qxxt -2:ixg .mj okc*m86k28zde 2i6dentical samples of the same ideal gas are in equal volume containers with the x8gq* dx6eiw ccz x:2m22kkt-as.6 ji8oj m1tsame 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 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 processes d10rj 4yidcyb,ld 5 2dperformed on a monatomic ideal gas. Process A is isobaric (consdr4ylb5 d,d cj2id01 ytant 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 f l gt g*mqn6whoz1da 39mhomh/p6)76P, V, and T for an ideal gas, which one of the followin6nwgf/m 61 ohl*tz7 dm9gpq6o)amh3hg reversible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, w/*7m:)scbiv 8exsr ur1 vcli5hile container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, pressure, and number ofxb:vr7)esi8r s *m/lvcc u 15i 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 gase6uxv6. nr wfox8a/h) has pressure P , volume V , and temperature T . Which of the following proce/xvfrau6o h8xe6 ).n wsses would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomj9ea:o0cw t/ rrl-su1.l u lh3ic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated with the- l1or:wre l slj/u3c. 0ta9uh processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling