15.25: A gas undergoes the unusual pr7 x o.ypxz-y+gocess 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 cyliy.na5dydvd 76 nder, the stream of gas feels cool. This is ddyy da5n 7.6vbecause

  94.35: A gas can be taken from state a to c by t2r 4ryg :(pfnxwo different reversible processes, a→c or a→b→c. During the direct process a→c, 2yg x:rf2r4np (0.0 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 Volume gradkds (:o 1tyr1qc1( p 0gbhi*qph shown, in the process of going from a to b 60 J of heat are added, and in the process of goingpg1drh* 01qi 1:o kc(q(dbsyt 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 isothe(ejw.9isapc osh). v1 rmally compressed:

  97.15: Which of the following is always true for an isothermaiihyzy62z+ 2gl x q*4kl process of an idea+g zxy26zh4 *2liqkiyl gas?

  13.31: A monatomic ideal gas undergoes ayf+ gz y9r 0/xw qfhm;h;e/pz1 mpb54t reversible isothermal expansion in an enclosed container. Which one of the follo;y;hf z5 gpbqry/f e0 thp +wmz9m41/xwing quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobari3nt) qyj 2ksz,c expansion followed by an isochoric cooling. Which of the following statements must be true aftert kzy3)n,qj s2 the completion of these processes?

  11.44: One mole of a mon x(ujw)d+0t,-wbrsjvrv; i uc/ s;z)c atomic ideal gas undergoes an isobaric expansion. In the process, the t0s+wbc ;jj t;/) ,uw- zdsvui)rx(vcremperature 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 surroundings?

  14.46: A monatomic, ih 23jdi11x uyydeal gas undergoes an isobaric process. During the process, the gas performs 80 joules of work on the surrounhyi 23jx1dy1u dings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric proc xf b/k a7:9mmlep86igess on an enclosed ideal gas in which the pressure decreasesp8b96kaml:7m e fixg/?

  15.47 One mole of a dbftu k ):k*z1 xjqnd:5iatomic ideal gas undergoes a reversible adiabatic process. The pressure and volume initially are given as P = 2zukbtxd q j)5f*k1n ::.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 idenki.zju gqst*7s;(vi 6 tical samples of the same ideal gas are in equal volume containers with the same pressure and temperature in tis76.u;ksj g* iq(zvcontainers 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 revkhfkrt( )3gss :rbz 96ersible 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 ir6g fb3(skrs9 z:k )hts 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 +0 boqgbf*8 efgas, which one of the following reversible processes has the most heat assob e*+0fgobqf 8ciated with it?

  04.45: Container A ha(:avly k7e p gi2i-qy4s a sample of monatomic ideal gas, while container B has a sample of diatomic ideal gas. The ag 4vqky(:7 2iie-yp ltwo 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 fufpr,sk ,ln -:r8,m)*9csva o, hsfrgas has pressure P , volume V , and temperature T . Which of the following processes would pnsr, f,vkr,h f:so,c -s *r)mfa89luresult in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomi82 *xz4e6dt lz g*rsgdb9jd 2xc ideal gas are to undergo reversible processes. Which one of the folg 8*4*s9bl dzg2txz6 2jr dexdlowing choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling