15.25: A gas undergoes the unusual process M n.*)osz6r -5uemtovn$\to$ 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 feel/ +1nr)id :s h)ye dymsdgzk8cg+ :pw8s cool. Thiye +syc+ rk: )p8wi/8g1dz)h m: sgddns is because

  94.35: A gas can be taken from state a tob (ze*u/mwgx:do4jc/k.iu )es p7zz8+ r 2dcb c by two different reversible processes, a→c or a→b→c. During the direct process a→c, 20.0 J of work are done by the systembgwzoizejue kz4sc)pd( 2c dx8 b+*:r/7/.mu 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 shoo pyv (e h0y);pe dt,qips3d(4aqox 8)wn, 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 are added. In the process of going a to c to d, whay pxe0h)i;3td p4q (po qa,es) o(y8vdt is the total heat added?

  96.22: When an ideal gas is isothf9y/emn/i3a djv 0lb0k, md u4ermally compressed:

  97.15: Which of the following is akjp3h s w)b4do9.m +edlways true for an isothermal process of an idea o)9mp jkh +.wd3ebds4l gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansion xuo)d.ltr,(gzmmh4/(eh t ;v in an enclose )v;hz/tm( hedt,go(rum. x 4ld container. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergop c,:bt dy9(1jgr)ojc(st 4ryes an isobaric expansion followed by an isochoric cooling. Which of the following statements must be true after the completiorpjt tdg((s: jry,19)y cc4b on of these processes?

  11.44: One mole of a monatomic ideal gas undergoes 2fktdwyew 6p8;sl+/ p an isobaric expansion. In the process, the temperature of the gas increases d/ft+p s8leyw p; kw62from 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 un.ln7uw/s6s srdergoes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements snws/6l ur7s. best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric pro7 e1q* e;bljaycess on an enclosed ideal gas in which the *yla ;71beqe jpressure decreases?

  15.47 One mole of a diatommo w;ys9r.u2) l 9kelfkcmg7nu fr+8 .ic ideal gas undergoes a reversible adiabatic process. The pressure and volumerwu 9km 2ko. c8y+ 9ng;7fmflu )lers. 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 same ideal gas k n+b+a,q9l jyic r74hare in equal volume containers with the same pressure and temperature in containers labeled A ann y94i7jrba h+q,c+k ld 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 pr6l3-ioe si9dcruv (*cocesses performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (const i*ocluve -9 d(rc3si6ant 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, which ojdp;ra6f-mef +w0jwe,ha 7o v g-cv- (ne of the following revew-vedogjhvpc+a0rf 6w f-(ma7-;e j, rsible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gbv ll(lb b pfosp,) q5y8f46(tas, while container B has a sample of diatomic ideal gas. The two gases start with the same initi,pp8(o s)y (6qbv4l 5ltblbff al 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 has pressure P , vol yqnwnwm)/+ 4 u/uqlvyj q4,(fume V , and temperature T . Whic/+44 wmqwj lq(f yvuyq/,)unn h of the following 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 undergo reversib cyehewtgk ,o :0rw(a,k3*3hele processes. Which one of the following choicek3aw0th,r ,weko hy*c(3:e e gs is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling