15.25: A gas undergoes the unusual pxkn 6ebibi649v/7oym mr2 n jc,w j0)qrocess 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, the stream of gas feels 9f5cg8g +pnap.(f5 oxs w(7;rci xmxycool. Thisc.a gx(5 crgoy+9sipxxp5fwn; (78m f is because

  94.35: A gas can be taken from state a to c by two different reversibll3sq*so- 9dj 2if+omg e processes, a→c or a→b→c. During the direct process a→c, 20.0 J of work aresdqg-olfs9 io+ j23*m 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 Volume graph shown, in the 0anx; y(wur7m0t.1h6xgt hp cprocess of going from a to b 60 J of heat are added, and in the process of going fmt;6 h1ny hrt0ag x7u0wp .(xcrom b to d 20 J 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 isothermally 9nl.d)upmkn oqu9+ 9ocompressed:

  97.15: Which of the following is always)pxi /v j;9evc true for an isothermal process of an ideal ga9)vce px vi;j/s?

  13.31: A monatomic ideal gas undergork k+ --e 60- 8dxenkqry l-uc3gdcf9oes a reversible isothermal expansion in an enclosed container. Which one of the +fcl --3c 8 end q0gxud96rk-kroky- efollowing quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed vao ikb,6j8ut35:/g6 iec jkk by an isochoric cooling. Which of the following statements musb e,o6/ vkkjaktiu 83g5i:j6ct be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaricrd7id ;csk3b, 3ss49 nr zadbj:h9a-s expansion. In the process, the temperature of the gas increases from 300 K to 500 K. Which one n 4dd97 d9b 3sbjks-cr;azras3 i:s ,hof the 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. During2du/k0kw/s7baykb vj;qj7 t + the process, the gas performs 80 joules of work on the surroundings. Which 7 qaj+/u;v/t2b 7k dbk ksw0yjone of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on an enclosed,fjdss v, 6)amiz g3q/ ideal gas in which the presj /dq6fzv,s3 sgm a,)isure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic pro 25 ypl :wcb bz1zv/3w+r2xhx:g1 yahmcess. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If th1l1vxz : pbh :2aw/z +gbywcrxy53m2he 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 5xr65eryu)yf3zv 3 rg 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 and B, which is at the higher tempeyuyrf )3 5 6e35rzrxgvrature?
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 rever * 18pu/pu mmfzx2eanen7ao(li1 q*3msible 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 process(es) mpi1e2n mn7z3qpa(/u1af*e * m8lu xodoes the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an ideal gas, which one ofz5+pj bma h 3zlj7-riccw ml.8 y37y5z the following reversible processes has the mostyj7 l5am.5 ymiz c3 7wzcz-ph3+8jlrb heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while conz31btx,q/s8 g9uzux6df xi ; utainer B has a sample of diatomic ideal gas. The two gases start with the same inix/u6f3tsx g 9d;8uqi1x,bz u ztial 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 moni 2jw k z;3fcfxd,p1i9atomic ideal gas has pressure P , volume V , and temperature T . Which of the following processes would result in the greatest amount of ef2;d,z1p9i w3xfijck nergy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas a lotu6; t zc65/u8ckxcre to undergo reversible processes. Whiccc8u6 ; k6u/tctz5xl oh one of 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