15.25: A gas undergoes the unusual process -z:y)sr+j jatr9dto: . ruzq)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 strks; k/ytrl+3qncxf/6el/seg 6 n 4ty4eam of gas feels cool. Tys r/n;3/ll kgqstt4f6 n4 ekx 6+ecy/his is because

  94.35: A gas can be taken from state a to c by two differen+ ajx (2*5x0hgpd bedxr7v( xat 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 or dg2xxb+(d x x(*avjh pe75a0f 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 the process of goiore 32),dljwdhs+e 7id6v .xcng 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. Inwe lexd.d6j7vh+ios 3,d )c2r the process of going a to c to d, what is the total heat added?

  96.22: When an ideal gc )a1ijjgbm+kj;+ otw u:n(a;as is isothermally compressed:

  97.15: Which of the following is always true f(bex34 k5fx1y2ldd cuor an isothermal process of an ideal gaf5l3( 1b kdce 4dxxy2us?

  13.31: A monatomic ideal gas undergoes a reversible isother+0 i(xh:slz pbmal expansion in an enclosed container. Which one of the following quantities a+pih z (0lsx:bssociated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion fow *nxf7h9awyegr)((p d dyf /)llowed by an isochoric cooling. Which of the following statements must be true after thexp(ya )feg (7 nhyf d9r*)dw/w completion of these processes?

  11.44: One mole of a monatomic idea6uu) xha.lkz 3l gas undergoes an isobaric expansion. In the process, the temperature of 6uax3.l zku)h 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 undergoes an isobaric process4jksor5n f1uu(xy,q 0. During the process, th0(s54qrfyn ,u1j koxu e gas performs 80 joules of work on the 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 in whi mz8g)camrp1g so )3u3k nc:+rch the pressure dezrgo)r 1akn 3su:8m)3cp c+mgcreases?

  15.47 One mole of a diatomic ideal gas undergoes a ;m ) q13nbtkl+of z+)*hjpswru7 hj2 ereversible 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 +;l2sjhfu31khwrn tbm +eo)zpq 7j*) process, how much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samt01n ex 5fe71dszz* sfples of the same ideal gas are in equal volume containers with the same pr0ed*5zxs 1f1tzfn s7eessure 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 shows four d+fg n1p:fjt2( qh8k mkifferent possible 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 process(es) d nq+2fmkhk8t j1pg: f(oes the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an ideal w qctrmg gi+pt 8-av8);dc7l ,gas, which one of the following reversible processes has the most heat associated with itv-i,g8 c g trtqpd)a;m8+c 7wl?

  04.45: Container A has a sample of monatomic ideal gas, while conta3.ma h4cdemoqor b +j*g q6 zp)i/6i6biner B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, pressure, and number of moles of mol+ bp.mecogi6 im4*r3bh6odq 6)aj/zqecules. 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 h/dub;i 6yx3 qhas pressure P , volume V , and temperaturdi /6xybu; hq3e T . Which 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 mi c+(gyyl:n8g cl)0ereversible processes. Which one of the following choices is a correct statement c)ge8 ny+myg l(0cil :about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling