15.25: A gas undergoes98 i,bchx,aapkhl ,4z2 wc / m/iosr+t the 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 from a pressurized c6/oduf b2b p 8ni7dig5ylinder, the stream of gas feels cool. Tog7dd /n2 i6bi5bufp8his is because

  94.35: A gas can be taken from state a to c by two different reve vde4y d-se+o/e48uwersible 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 Jw ue+/ ve84 sd-edyoe4 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 the process of going from ax lb,d3xh7hq* m31hf e 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, what is the total heah 3 mx*lxbed17h,3qfht added?

  96.22: When an ideal gas is isothermally comp4z pa s.ppppnf++ug7 0ressed:

  97.15: Which of the following is always true for an isotherm c;i* s/sx+zss)6 +e ab.dj2uvec zj2ual process of an ide6/2).ssbsxzjiucasdj ;u2 +c e+*ezval gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expa/d-oif* clc.ansion in an enclosed container. Which one of the following quantities associated with the gas has a value of zeid-afo/cl.c *ro?

  09.33: An ideal gas unde twzvi3br xk-)i1z*/k rgoes an isobaric expansion followed by an isochoric cooling. Which of the following statements must be true after the completionrvt k)wzk/bx3i-i*z 1 of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. Ink6ou. a hpz ()le7acd/ the process, the temperature of the gas increases from 300 K to p(az c6d7ohk/ )aul e.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 undergoes an isobaric process. Durfat s 8qz7)f+pj(gpy3 *we u-ving the process, the gas performs 80 joules of work on the surroundings. Which o)7qzg8 -ypteuv+a3*(j pwsff ne 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 ix7hk 4)+v2 g qiyver1dn which k)yieh vdx41r72g+vq the pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversib su 3oeqh-5kq(y9ixo -le adiabatic process. The pressure and vhqs(yoqx95 -eou-3ik olume 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 are in+vcy ap6 b :lrqba;vye1cq+-( equal volume containers with the same 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 highl byqr:v+e6b(-c ap+; y cav1qer 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 rbk txz5 0*;efh axelfb7 1.qt,eversible processes performed on a monatomic ideal gas. Process A is i., bf5e170eh b *axlqxk;tzt fsobaric (constant pressure). Process B is 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 st4rhkhw5y vrdt03i( 3+zk4y et ate of P, V, and T for an ideal gas, which one of the following reversible prr3hdv4 ik3yet4 thz kw0(5ry +ocesses has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while container :g;i1 w1c,wehujsp; n*xa kv9 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 prj1pw e;n v;x ,1:* gscwhikau9ocess that cuts the pressure in half. Which sample of gas is now at the higher temperature?

  08.44: A mole of a monatomic i3uqlasjyy2.5.i vg :jk,gy: tdeal gas has pressure P , volume V , and temperature T . Which of the fyql tkyygs5j2 :v., ji:g.a u3ollowing 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 refoac6voq 9jr(s35 1akversible processes. Which one of the following choices is a correct statement about the heat associ v916as( jooq3 r5fakcated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling