15.25: A gas undergoes thr dhl.l**s 2nez,6p7tu g4d ode 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 fromjntyed3f:.ak2 n 7 5op a pressurized cylinder, the stream of gas feels cool. This is becauseae2 p7.ky5njt dn3: fo

  94.35: A gas can be taken from stat;:c lce90 lqfgysak52e a to c by two different reversible processes, a→c or a→b→c. During the direct pllc9sy2e: cqg 0a;fk 5rocess 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 during a→b→c?

  06.26: In the Pressure versus Volu) op9g 055h2j2bhv4uif:d2qk /gq q+ oytge vxme graph shown, in the process of going from a to b 60 Jv9t0 depq :g)+hg2oq/5 hbikxou 2 2q yf5v4gj 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 added?

  96.22: When an ideal gas is iso0: nfoux7h5 cqran:zb-k nr,5 thermally compressed:

  97.15: Which of the following is always true for an isothermal process oi:+cbvwon*u6 i :u/evf an ideal gasn we*6iuuv+ bi:v/co:?

  13.31: A monatomic ideal gas undergoes k;: f2g g: /u:k bwf*vxeewr3ba reversible isothermal expansion in an enclosed container. Which one of the following quantities associated with thevb:e/g2wk :x3 ewrgf* k;f:ub gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by ans)8e o-5v(js gk:beau isochoric cooling. Which of the following stao evj- sbu8:ka5e)gs(tements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric ex t,t2. f, qaxl2wbt 0)tdjskm-pansion. 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 workx fb0taw-s), 2jkm.dl2tt ,q t done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. During tt- bem)wij7 u wg-c7a ,tg7k8nhe process, the gas performs 80 joules of work on the surround7 ew t-mn7bcuw)78gja, t -kigings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process on i 3*fgh07x qheh4z 6ohan enclosed ideal gas in which the pressure decreas0q 3gf6hh *4ohxiz 7ehes?

  15.47 One mole of a diatomic ideal gas undergoes a4 j/9l-emm d+17cyqc kmogu-o reversible adiabatic process. The pressure and volume initially are given as P = 2.0 atm and V = 30 L. If the volume is h gc komj/ 741-e+-cmoul9 mqdyalved 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 are in equal volu k 0gk4,ssng)eme containers with the same pressure and temperature in containers labeled A and B. After the processes are pessg)k4k ne g,0rformed 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 perirs-kf,f a04z zswg/n7pr-sb; /, aa cformed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermik0z/aaacf-s-s,,pszn f 4b/g; r7rwal (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 ideal gas, whichw 6uq5;p(;c yo6ve2j.nvh *(t 9 kb. eisedmuu one of the following reversible processes has the most heat 6(uqy ;pn;ueie2uvv.(dk. *htcj5ws6o 9 b emassociated with it?

  04.45: Container A has ar /pv;4x ducw83mo/, e 3xhuhn sample 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 presm u8r3xew;,p cv nhxd// u4o3hsure in half. Which sample of gas is now at the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressuatqq,l)k1g+q2 bhj ox: d-zf7re P , volume V , and temperature T . Which of the followingto27z xqfb gj,qh)dl:- 1+akq processes 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 undr6fnf-dry k-)- 6fvw pergo reversible processes. Which one of the followif6-w- 6pf)nf-r ky dvrng choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling