15.25: A gas undergoes the unusual process44, ly hgi sdo)tlv*v9 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 fjseec1ac5 1 uvv3 r.g5rom a pressurized cylinder, the stream of gas feels cool. This is becausecra5s u 5v131cvg.eje

  94.35: A gas can be taapp xtprt7u1t1 :a,5cliiq,/ken from state a to c by two different 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 hea tu,papt1 r1ca7,tilxp:/5 iq t are added to the system. How much work is done by the system during a→b→c?

  06.26: In the Pressure versus Volu1u.7a k4jvs y rg3e (v:a(erjzme graph 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 added. In the process of going a to c to d, what is the total heat ake1(7v ( vsayu4jzar 3 r.ejg:dded?

  96.22: When an ideal gasy0 )c+bro *msv is isothermally compressed:

  97.15: Which of the following is always true for0weno1k4hx5mw go 1-v an isothermal process of an ide14w nkm0v whxg-1o e5oal gas?

  13.31: A monatomic ideal gas undergoes a reversible isu3 y t9qv9;b,aub f5fm3l9hqwothermal expansion in an enclosed container. Which one of the following quantities associated with the u,f9wq;9bv fhy3 m 3l95tbauqgas has a value of zero?

  09.33: An ideal gas undergoe 6f g.lm+2nrit h+4ncyta n0d*s an isobaric expansion followed by an isochoric cooling. Which of the followin6n2t n0*c++d mtyg4.alnrf ih g statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. In th8q-xf 8k mjhz7e process, the temperature of the gas increases from 300 K to 500 K. Which one of the following choices best represents the amount of wk m 7xj8zhfq-8ork done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes ixxwe vdczya,v48f.6.u,h m0 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 excha 4v,iuvm0f6y.he d.8az,xc xw nge during this process?

  07.40: Which is not true of an isochorico(6opq ;lxa8 e process on an enclosed ideal gas in which the pressul(x o;8 6oqaepre decreases?

  15.47 One mole of a diatomic ideal gas undergoes a revz3g5*x wrw).o3e(kwv *owrm eersible adiabatic process. The pressure and volume initially are given mw ee5.3z w**3r()oov xkwrwgas 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 ideal gas are in equal v5pu4b crh+o o/8zgri ;olume containers with th z8rorgb/; 5 i+o4upche 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 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 v6g;a t-kkbk(lfo:03ylexx 2sin0r9 reversible processes performed on a monatomic ideal gas. Process A is isg: avb3 ;o6k0ts0f9 i lx-2kyrnlekx(obaric (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, wmj,;g n -1xhynhich one of the following reversible processes has the most hea ,gxn;-jy1nmht associated with it?

  04.45: Container A has a sample of monatomic ideal g w(elox/;6a2o q7zf rlas, while container B has a sample of diatomic ideal gas. The twoexo6 a/ 7lf2 lqwr;z(o 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 pres viev2 gbsf(zxwt;17 x0 bul/4sure P , volume V , and temperature T . Which of the following processes would resu4 vuf7 l0xebxviw12; (/ztgb slt in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to undervlnluahjy gl; *g5+43.oa. to(qr;lxgo reversible processes. Which one of the following choices is a correct statement about the heat associated with tlx(*glu 4 nat;;lr+ha.gy.j5qo3 olv he processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling