15.25: A gas undergoes thet(9+ ql aq4tqjrh18m s unusual 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 escah2ko v6zczx;x /q:e- rpes from a pressurized cylinder, the stream of gas feels cool.2kcrqze x/oh-6 vx:;z This is because

  94.35: A gas can be taken from state a to c by two differe:hhadz 1 et/5ont 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→b→c, 25.0 J of heat are added to the system. How much work is done by the syst/aed5 hho:tz1em during a→b→c?

  06.26: In the Pressure versus Volume graph shown, in the procei.wnp)qme5 ,r))d 93veowl anss 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 is the total heat addeqn3lowe))wma)ed9 i p5v. nr,d?

  96.22: When an ideal gs3 g 2qnwf lyw*cp9t27as is isothermally compressed:

  97.15: Which of the following is always true for an isothermal proce r.n8(c*vloxqe)1dq iss of an ideaeo (1.* di q8rnl)qcvxl gas?

  13.31: A monatomic ideal gas undergoes a reversisb tm6to7p 00uble isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a valpt7bt0mo6u0 s ue of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by anxa atg 8jhk;,0w9gzp0 isochoric cooling. Which of the following statements must be tkht z ga0; 9,pwjg8xa0rue after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric egmqzf86(8 ziyxpansion. In the process, the temperature 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 surroundingszm8 6( 8yzfigq?

  14.46: A monatomic, ideal qts14b 3g8wuu gas undergoes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat exchange during this process?quts1 w8b3 ug4

  07.40: Which is not true of an isochoric process on an encloqn,3 cgvl yi1-92ib resed ideal gas in which the pressure decrearice23b- yi9n1 q,vlg ses?

  15.47 One mole of a diatomic ideal gas undergoes k1x1 pxyn8vf2d7yb ;ta 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 adiabatic process, hoxxyy bvd pnt fk71281;w much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samples of the same 5ud lzbtvk.hks 7;8.yideal gas are in equal volume containers with the same pressure and temperature in containers labeled A and B. After the processes are performed on the gases in containers A anusy lkvz 8b.t5.dh;7kd 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 i5twd: p4 ox4/v di4-yknwh;freversible processes performed on a mon/; :4o4ytkw5d if xd4pn-w hivatomic 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 fo2ia5; sct2*j qgd q-aqr an ideal gas, which one of the following reversible processes has the most heat associated wigdqis a*at22cqj-5;q th it?

  04.45: Container A has a sample of monatomic ideal gas, while container B hasl9j izri6*q:dk.xe+6 onb2w t a sample of diatomic ideal gas. The l.iz t2n+* kq:rebo w6dx6ji9two 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 -s;*hgtxyk+ .yg ua2w has pressure P , volume V , and temperature T . Which of the following processes would result in 2;ysu-g.tgw h *yakx +the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are nedevq3:b 1)oh j(z9+ hw7mopto undergo reversible processes. Which one of the following choices q(dw e)he93:vn+obo m hj7 pz1is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling