15.25: A gas undergoes the unusual process M /ky, teqey.g6,ncf-a r8qx*u $\to$ 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, the stehdt/wb8 9t:m j3jv r/ream of gas feels cool. This is bec:jebwtdj3mv/ 8hr t/ 9ause

  94.35: A gas can be taken from state a to c by two dif; ,gb cvhn7+5f x9c htadbp u mq1w/,29qt3cxiferent 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→pvx5c hgqu1acf92w+x ,mi 9b hq /c,3b n7d;ttb→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 shown, in the process ojyk*wf dnlk/a5 )4ze+f 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 adde+/kjdzn4)y l* kw a5fed. In the process of going a to c to d, what is the total heat added?

  96.22: When an ideal g*s)e, esg-nul . yth0vas is isothermally compressed:

  97.15: Which of the followu z* zp f5e)h4y8qt;aving is always true for an isothermal process of an idefv4 t uzyaq;*e5)zhp8al gas?

  13.31: A monatomic ideal gas undergoes a reversible rf5h5opk,o-x isothermal expansion in an enclosed contai k ,55prx-fohoner. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion vrzn5,ywu5 xxf ,g.k0followed by an isochoric cooling. Which of the following statements must be true after the completion of these processesu,fr g nxy w5zk,5.0xv?

  11.44: One mole of a monatomic ideal gas undergoes an isobari7 xd b4x v)k6fwved5;ec expansion. In the process, the temperature of the gas incread4eb65)vxdfx;ew 7k vses 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 isobaricclcz09tv4je de1v 4g j9ua6z1 process. During the process, the gas performs 80 joules of work on the surroundings. Which one ogdle91vaj 44z0 j6cve9u 1tzcf the following statements best describes the heat exchange during this process?

  07.40: Which is not true of anuhs8z cg:)/2kaikevl )+d/)qvd r*bt isochoric process on an enclosed ideal gas in which the pressure decre b ))dzkig2q*tra/ev ) hvu+:/cd8lksases?

  15.47 One mole of a diatomic ideal gas undergoes a reve5wi zvo*rh q*-plsl3 /6oi4nh pzr5t1rsible 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 adiabatic process, how much work was done on the gas sample by the surroih4qvilhw55-rln **os r3t6 pzzp1 /oundings?

  03.48: Two completely identical samples of the same ideal gas a8hkn,f 14hq hkl voo6d/4* eczre in equal volume containers with the same pressure and temperaturelfk oce h,n1h4oz*6 vd/kqh48 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 reversible processes perform,w2:sf:x9 9ekj bbp1sf0 xa ruexxs w0fu2ek9fjpb ab1 r:9s, :d 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 process(es) does the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an idf pu( dt7bok+vgd( tw(68okn.eal gas, which one of the following reversible processes has the most heat associated with ik w fkon(8ogtup(+tb6d.(7dvt?

  04.45: Container A has a sample of monatomic ideal gas, while container B has anffw)8 4x9m p-eqxv3 smfb-yp nz 9n(. 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 undergoes a3wfnmqvpx49 x ben-8.(ynz9ff m)s -p 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 temperateun5tcw7npt+ smq/ -p;:y 3usure T . Which of the following processes would result in the greatest amount of energy added t:s cu5 qn+st3 n7y/e pmwutp;-o the gas from heat?

  13.48: Two identical samples of a monatom.1)u8t 1wcbwpm ll;knic ideal gas are to undergo reversible processes. Which one oww 1 nl)c.k8mp1t;lu bf the following choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling