15.25: A gas undergoes the unusual*lambr xpwm44; a x i/f2nhw)f4gk 3q0 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, thejlp7 gs xl*j:5*unbj3 stream of gas feels cool. This is b7b35xnu g l* jspjjl:*ecause

  94.35: A gas can be taken from state a to c by two different reversible * s.*amsk9 mhyprocesses, 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 system during a→*a s.mhsmyk9 *b→c?

  06.26: In the Pressure vrm*sde,7k oz*ersus Volume 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 irodk* 7 ez,*sms the total heat added?

  96.22: When an ideal gas is isothermally com 33 qglo-,sihnpressed:

  97.15: Which of the following is always true for an isothermal proc9rhuk7x s;zo33- p kvuess of an ideal gauz 7hvr okk9p-3u3;x ss?

  13.31: A monatomic ideal gd./z 0oxn(v ay+qvbggvzld9i8m n1 ::as undergoes a reversible isothermal expansion in an enclosed conty0 :.n o+89gvz l1 qn/i:d(bgmzdvaxvainer. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isochoe:k/;i *wm.v xl (zjharic cooling. Which oh v;.(x*ma lw/ezj:k if 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 akemrcd((jn31o2 )yx the process, the temperature of the gas increases from 300 K to 500 K. Which one of the fo km3yoaxe21rj)cd (n(llowing choices best represents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes ph5p)9 t)azncjy0k r 8fzb.9c gms9*k an isobaric process. During the process, the gas performs 80 joules r8fpsh99 ng)*.zktc b a05 zkcy9pjm) of work on the surroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochorbt qth:b 95ziz/*(y.6qcsrfqic process on an enclosed ideal gas in which the pressuy 6hz* b5rit(/qbq9:qc zt.f sre decreases?

  15.47 One mole of a diatomic idealz2r0od jv d. us9l0kmt2xj-a1 gas undergoes a reversible adiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the volumev92.mzkx0s do20lj t1 ua -jdr 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 volum5 c, h,)c p)ek1nzaqwae 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, whic )a,n1chc,awqe5z p k)h 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 procsh)y 3ell tgodv wzd(c7 bd/9p8w*n *3esses performed on a monatomic ideal ga8 sw/oeyl)w9td*7*pv(c 3 d nhlz3dg bs. 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, an 57:b-yz i 2nec-xgzwzd T for an ideal gas, which one of the following reversible processes has thc -ixwzeg nz5 by2z-7:e most heat associated with it?

  04.45: Container A has a sample of monatomi)f- nf;9t8suoxd1e zlc ideal gas, while container B has a sample of diasu ;zntf )9d1l-e8o fxtomic 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 pres;kg 8asdgq/:tlt/ w*esure P , volume V , and temperature T . Which of the following processes would result in the g*la8gq/: k sttd gw/;ereatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas arhu /)ejpnqw+ :e to undergo reversible processes. Which one of the following choicnh/ ejwq :u)p+es is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling