15.25: A gas undergoes the unusuauz r 3rz/-,:6i8n hr1ccisr*e i eq0qil 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)i tl+hot2v*k a pressurized cylinder, the stream of gas feels cool. )i+kv ol2 *tthThis is because

  94.35: A gas can be taken from state a to c by tnmi4af1h yx0ps t9 (e-wo 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. Dus (epaxyn mhi01f t4-9ring 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 versusk ri g;8sgnn+;z7zi+e 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 thskgzrz nn7i8;i+ge +;e process of going a to c to d, what is the total heat added?

  96.22: When an ideal ga7a04gxqa2a nnp 3kdpi5 y1 pi(s is isothermally compressed:

  97.15: Which of the following is always true for an isothermal process of an 4 -9* z0h g abm4wd. ktakn(gwnr(inp:ideal g(d r(nnw4* zpgk am0:4thik-gw ba .n9as?

  13.31: A monatomic ideal gas urf(okbv6 qkq2n) q:( wkb*9nz* q+ tvfndergoes a reversible isothermal expansion in an enclosed container. Which one of the following quant:** qf qk(wvznnbfb o+qr ( 296kvqt)kities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion follow03 )xqcl ew,+in2ro2fjqkwhc5f0c4 led by an isochoric cooling. Whifhq5ccwo2, 24 x 0fiwl+0 nerclj)3qkch 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 eiuumi-c e)ifryl qm7vm7 2p x,w, zkq53w 0w2-xpansion. In the process, the temper2y 2wvcku)x5q3 ,0i -m,upwl q wr7zi fi-7memature 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 an isobaric process. During the proce+ 6+ tmknn-.zhnc4nbe ss, the gas performs 80 joules of work on the surrounn+ntknhb+em4- zn c6 .dings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on anwsjctr. cfs 1/hxud7;x. 1b:p enclosed ideal gas in which thr . /7x:sj1fcxs.t u1cp;hwbde pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic pjjf3k+2vz +w lx*gae .rocess. The pressure and volume initiallzegw jvf+2.jk *3al +xy are given 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 id(6w6 +lx(ddat j26wa3hpn wbieal gas are in equal volume containers with the same pressure and temperature in containers labeled(dp62abti(h3ljx d 6ww+6anw 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 di pc9.tqasj1pzn-/hlp 3gm ;c95t 0v klfferent possible reversible processes performed on a monatomic ideal cmhg 9vpq3 sz/a cj5pn9lp0tk-.lt;1gas. 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 statfxg/12vugic8e): rl we of P, V, and T for an ideal gas, which one of the following reversible process2uwfe vgc8i1:xlg/r )es has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gasrf.nu,lt5 6 da, while 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 undergoesd,n5f .u ratl6 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 pressu xyaqxi d//9x s;.i/z5dund/s re P , volume V , and temperature T . Which of the following processes would result in the greatest amount of energy added to the gas frd z9i5//s./x ; ausdxni/yd qxom heat?

  13.48: Two identical samples of a monatomic ideal gas are to undn/0vf0ica 2+ dqze7ypergo reversible processes. Which one of the following choices is a correct statement about the heat associated with thp+niqe 07fd0azc2 /yve processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling