15.25: A gas undergoes the unusual procgv 2-itya. nf;ess 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 o)fwll/4o9kcj f gas feels cool. This is beca4fcl9 jw/kl )ouse

  94.35: A gas can be taken from state a to c by two diffv+v/1 bh 7uhy/3imfnel-rs ; lerent reversible processes, a→c or a→b→c. During the direct process a→c, 20.0 J of worl7l v3-1+ey su ;b hhr/m/fvink 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 graph shown, in t69wd3fbdx-8mb0j ns3 ain9ec he 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 nxmcwd8 -e0ia 6dbn3 b9f9js3heat 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 compressed:5 .re1vxcgmo,

  97.15: Which of the following is always hrgbj6r 8x+f6q0tp5z true for an isothermal process of an ideal pr 66 ztbqxg5rh08jf+gas?

  13.31: A monatomic ideal gas undergoes a reversib9cbtq j8 dzrq05:bx; .tt 4gbkjyn2p;le isothermal expansion in an enclosed container. Which one of the following quantities associdbpgct zjjt.8q;y nqbr :054x2b9;ktated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed;haf ucohtwm/j+izup kh 5 dq)o+ :(36 by an isochoric coo kc3h;uoh5dw:+thu pj f(amqzi o +/6)ling. Which of the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expa0q3 ad8ap/+ +wl qcmjinsion. In the process, the temperature of the gas increases from 300 K to 3+mw0dic/pa +q8j q al500 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 uat3t;,cu 5y y ,7shs)kaxrc(rndergoes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the followingxa75(sk ,u tc)cy, sar3;thr y statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochori/3tl)n:l;mi ky2d(fot gjp*k .am 4lkc process on an enclosed ideal gas in which the pressure decrease i;kpafmtt j mko):ly3*4l/( 2l dn.kgs?

  15.47 One mole of a diatomic ideal gas undergoexpn d( 3gev o*:- yopkq7cwc6;s a reversible adiabatic process. The pressure and volume initially are given as P = 2.0 atm andyno-(cepkx; c3q p7wv6 :dgo* 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 ki8t4:zt84q ln-5 s o uiiu9ibgas are in equal volume containers with the sa i ub-5iq9 8stktlniozu: 448ime 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 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 sg-qz3 in47jb8x zf kzns ,f4e7 (inx2dhows four different possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B i (3gx2nn n8,b-qzks f4i z74xeji7zdf s isothermal (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 f -.cdt.-eh*d *xgfbft;gp 6qc (-lfwideal gas, which one of the following reversible processes has the most hea* (hc-d ;..bgx dfcq pte-glfffwt*-6t associated with it?

  04.45: Container A has:kw quhw rlq ;x5hj205 a sample of monatomic ideal gas, while container B has a sample of diatomic ideal gas. The two gah0;5uw2j: qlrk5hxw q ses 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 V , anv:8ui nqv/ qn-nda1m 1bspgn;(yh9i5d temperature T . Which of the following processes would result in the greatest amount of energy added to thb; q gq5nhav1 m-:us8in1(/d 9npnyive gas from heat?

  13.48: Two identical samples of a monatomic ideal gaseyu ms k9,9ahh7 x,l0wsskk1) are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associa91h l,u7xmks k)ke wy9sh0a, sted with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling