15.25: A gas undergoes thj4wr*x13ot gn2 .kuxb;dmp9s e 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 escapes from a pressurized cylinder, q msw7 0*t,7vgasy0st the stream of gas feels cool. This is aq 0sg*sm7y,t s tw70vbecause

  94.35: A gas can be taken from state a to c by two din8c /:zojh8 scfferent reversible processes, a→c or a→b→c. During the direct process a→c, 20.0 sh/8cj o8zn:cJ 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 during a→b→c?

  06.26: In the Pressure versus Volur 2-0m2bbff vcme 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 arefb-bvr2c m02 f added. In the process of going a to c to d, what is the total heat added?

  96.22: When an idealswxl:y 9zl77d gas is isothermally compressed:

  97.15: Which of the following is always true for an isothermal proce 7j5f y 7ay*x1ru:k+dtkvwu/mss of an ideal7mw x ud/57avfrk yjy:u1+kt* gas?

  13.31: A monatomic ideal gas *xw 0( yle0gvfundergoes a reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gasfve(w lyxg 0*0 has a value of zero?

  09.33: An ideal gas undergoes an isobaric zh;dxwj e4j yoh( s164expansion followed by an isochoric cooling. Which of the following stat61(hh sde4y;jw4oj zx ements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobgcsnr)x9a / )taric expansion. 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 gasnca gtr)s9/) x on the surroundings?

  14.46: A monatomic, ideal gas und1-nqxea u*jd ,vypzuf :::.kyergoes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which z v* k.d:qn uu, fxjp:ya:y-e1one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoriceecs2 w4d -b4f process on an enclosed ideal gas in which the pressure deb ds 424c-efwecreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic prkc g*h81wsu)rv4 * rtdocess. The pressure and vold g*u*)14rktscr 8wvhume 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 surroundings?

  03.48: Two completely identical samples of the samezkb:u9 ;.l eznc(eox6 ideal gas are in equal volume containers with the same pressure and temperature in containen:z( x;9c6e eulkz.bors 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 processh 0z ,mv+c lh5xzvr58bes 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 pr cmhhbl+5zzv0 r85v x,ocess(es) does the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an ideal gas, wt:l 9juq n3na4us-*n zhich one of the following reversible processes has t*s jq9-a4nunz: n 3luthe most heat associated with it?

  04.45: Container A has a samvbik9agc,v*)(m ) jkaple of monatomic ideal gas, 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 undergoes a reversible adiabatic process that cuts the press)c(ajmk9*giv bva ,)kure 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 , ac -3zwmp-msv:k- c8s mnd temperature T . Which of the following processes would result in the greatest amount of energy psw cs- cm-mkzv3:-8m added to the gas from heat?

  13.48: Two identical samplei0m scm,pzso,9 :v1cys of a monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about th , 0 m9o,cv:iycmsp1zse heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling