15.25: A gas undergoes the unusual procso8lah g bph(4y;;p :(krr/ ifess 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 fr*dx: zpk+)bulq;2 c pzom a pressurized cylinder, the stream of gas feels cool. This is becaudp c)luz;:x qbp2*+z kse

  94.35: A gas can be taken from state a to c by two diffeywawz -:h0du8rent reversible processes, a→c or a→b→c. During the direct process 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 aru8awy h:d0 -zwe 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.ry5s(3;7aag ukzh o j, 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 u5h. r;(a gja7o3kz ysadded. In the process of going a to c to d, what is the total heat added?

  96.22: When an ideal gas is isothermally comprl.g vt / y+7iu7b ipf7tj)rs eui,;7onessed:

  97.15: Which of the following is always true for an isothermal process of uc5rh1oly(qj( -p 1vc an ideal c( lhr1co vp5 1q(u-yjgas?

  13.31: A monatomic ideal gas undergoes a reversible isothermalm5/,un*- dyf rbl7awbwwt .o 3 expansion in an enclosed container. Which on t 3w5bwbm.-a*lfdn,yr/u w7oe of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isochoricm,y8 lo:)bynpre ndv6co 7j:.f4 ik* e cooling. Which of the following s)ok .fp:cbi,6jy 8onv 74r:nmy* leed tatements must be true after the completion of these processes?

  11.44: One mole of a m )o,+v d ra9wx,tu4apyonatomic ideal gas undergoes an isobaric expansion. In the procex 4o a,9d)ruvwayt,+pss, 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 gas on the surroundings?

  14.46: A monatomic, ideal gas undtz4 xrd/w/a0z. 9u;m ;andrjiv(bs/vergoes an isobaric process. During the process, the gas performs 80 joules of work on .d 4vdi(mruxw n ;v//r;szajatb/09zthe surroundings. 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 an enclosed ideal gas i l8bxo4dzr ;xw0uqp, /n which tw,x 8obu40 ;rzdl xq/phe pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a2q mq an7go -csu:rus4op566k reversible adiabatic process. The pressure and volume 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 doc srsq u 2 :45qgopoknm7ua6-6ne on the gas sample by the surroundings?

  03.48: Two completely identical samples of the same ideal gas are in equal volumpn eqqk*6 2hulv +1qd5e containers with the same pressure and temperature in containers labeled A and B. After the procedv2* +q1kqeq6 uphn 5lsses 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 possimq5n qz 4l6,sbh;5b7 jzqvlf 4ble reversible 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 ph;4 ,q4l7v ljz5bs 5mfqznq6 brocess(es) does the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an ideal gas, which one of the foem vu1tqg)* 5dll1qv5t * d)egmuowing reversible processes has the most heat associated with it?

  04.45: Container A h8-28 oi+uclu 4lk8y azi.zts vas a sample of monatomic ideal gas, while container B has a sample of dia i+2lt4vz y8s-azk8iuo8 cu l.tomic 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 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 , volume Vb(c a9: mersprt,qq-0+ : +jkiciz7hk , and temperature T . Which of the following processes would result in the greatest ajk:asqeph7:9 b q,-tri+m0k (+c czri mount of energy added to the gas from heat?

  13.48: Two identical sned 7je/tzsx154vm:-r e2mz:+h zfb samples of a monatomic ideal gas are to undergo reversible processes. Which one of the followib h2fx:tss -zm+e4jzde/mz:5 e1nr7vng choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling