15.25: A gas undergoes the unusual processx t)qlo x0s*8n 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 escapeszr7 ui)d+ i1rt from a pressurized cylinder, the stream of gas feels cool. This)riu ir7z 1td+ is because

  94.35: A gas can be taken from state a to c by two different rever9bsd)rh(qr 0 ksible 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 system d rbskq9 hr()0during a→b→c?

  06.26: In the Pressure versus Volume graph shown, 4toi-*elcg 7ty8vv 6tin 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 ic 8tyil 4v6e ov-*7ttgs the total heat added?

  96.22: When an ideal gas is isothermallyjaz rsfbpam74+(-;6 e:isk dr compressed:

  97.15: Which of the following is always true for an ip.v-;-- fw a,ykfhn+x gvj:xb sothermal process of an idehfwn -axjk,gf -+p;xvyb -:.val gas?

  13.31: A monatomic ideal gas undergoes a reversible isotherm9g-hr;,pa iy d6lcsw 8k k9nl*6a, xg/id;o yqal expansion in an enclosed container. Which one of the following quantities associa 8wa-gn gya,;i/*ks;6lcld9 9 ih6xkdyrp oq,ted with the gas has a value of zero?

  09.33: An ideal gas u1hj jfo3s8rgpbk*jxmo 26 ,k;l u7 -tkndergoes an isobaric expansion followed by an isochoric cooling. Which of the following statements must be true after the completion of these procek217xj,rpo sk-h; louf g3kjjb8m *6tsses?

  11.44: One mole of a monatomic ideal gasb/wv2d v 7bv+a undergoes an isobaric expansion. In the process, the temperature of the gas increases from 300 K to 500 K. Which one of thb/7b2av+ dvwve 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 procesoo z0u)ez1yf 6s, the gas performs 80 joules of work on the surroundings. Whichu0)ez1 y 6zoof one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an encmp 94t8vlr jer0hv2f p.x 1dt9losed ideal gas in which the pressurp l09mf1e8v4rhtvx.pr tj9d2 e decreases?

  15.47 One mole of a diatomic ideal gas undergoes pp6k4j9gw4r /z8cxyg a reversible adiabatic process. The pressure and volume iyjpgck r68/pxw944 zgnitially 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 ideal gas ,s qugdzr,7 l 234jsreare in equal volume containers with the same pressure and temperature in containers labeled A a27d gus 3,4jlr s,zerqnd 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 possiblrbv a -vqhi9g :nksf40e /2z7ye 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 (r/ 0zh ky92n-s:bei7fv gvq4aconstant 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 id-c* 1cvgec0vg eal gas, which one of the following reversible processes has the most heat acvcv-1c eg g0*ssociated with it?

  04.45: Container A has a samalu4b0 p aoc95ple of monatomic ideal gas, while container B has a sample of diatomic ideal gas. Thloupa ca409 5be 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 monat byojao9k (5ye.2 .ybgomic ideal gas has pressure P , volume V , and temperature T . Which of the following processe. .eyyy2 5(gkboa9 objs 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 to underp. bhsg v-4se,/8vs ypgo reversible processes. Which one of the following choices is a correct statement about the heat associated with th b/e h.vp4yps 8vgs-s,e processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling