15.25: A gas undergoes the unusual processky8*v3a; dqx 3mcea )l 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 fro(8.4hh:m itp sl. 4w,cob 7tjuzl i0yem a pressurized cylinder, the stream of gas feels cool,blmhi.w hs(eilto8:t.47up 04jyz c . This is because

  94.35: A gas can be taken from state a to c by two diipc e154a8 xnb2yf7k8z l,vesfferent 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 addedck85x sy4pz iefa, vn72 lb8e1 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 graph show)cnoc4f5rw*v v))w1lgp ,uap m gsk-/n, 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 Jo cc g )v)wvu5rp,1fa/kwgm) lp 4ns*- of heat are added. In the process of going a to c to d, what is the total heat added?

  96.22: When an ideal gas is ib n8 j/ourzgg0b8rh(0sothermally compressed:

  97.15: Which of the following is always true for ane)e+jv3dj8hc u8 qnc) isothermal process of an ideal gas?v8j e3)cjuq+dn8 ch) e

  13.31: A monatomic ideal gas undergoes a reversible isothermal expanqfd:(1 9 ltxddsion in an enclosed container. Which one of the folloddq td:f91l (xwing quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric eetc- - 1pwz pf)9e;bp2hvi(it2og3e x xpansion followed by an isochoric cooling. Which of the following statements must be true after th 3) te-p2p1-cp9ev i2tx(e wgozbi;fhe completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion.)uda(bxs g5m. In the process, the temperature of the gas increases from 300 K to 500 K. Which one of the following choices best represe()sbudxm.5a g nts the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergo0+mxf ifq hk6ps1sm51es an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statemen0mq his5p1mkfx61 sf+ts best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric processt0pc0ci3od8-3cmi b q8* zlaa;q0ttc on an enclosed ideal gas in which the presstca t8ai*30zqolc00q8-c itb; m3c pdure decreases?

  15.47 One mole of a diatomic i 0 b)u qk/sw0i)zlo0ti1 pesi*deal gas undergoes a reversible 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 0b1)i/* kii)lsuopze 0 qts0w adiabatic process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samples of thea:rgvrx,-s)c *9ekxs same ideal gas are in equal volume containers with the same pressure and temperature in containers labeled A gr :cxx)s*v e ,sar-9kand 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 diffupcwh8xl5pa f2 a0p5;erent possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process C is adiabatic. Process D is isochoric (constant volume). For which proc8h f 2l5;uwa p0xa5pcpess(es) does the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an ideal gas, which onfuo+v0fmz n q;5(r )bke of the following reversible processes has the mfn fuqr)z;omb+kv5 0( ost heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while coe gw *g+(vkqvlxu 4)e7ntainer B has a sample of diatomic ideal gas. The two gases start with the same inkwgl7 ev* + 4qe(xgvu)itial 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 pressure P , volume V , and temperpz dby8kg0a- *kv0x n cm+r3:hature T . Which of the following procesgm08k0hnr ad3*k: p-b xyvzc+ses would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are/ 7xwxy8h ave* to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated witwvxa/8 y*xe7h h the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling