15.25: A gas undergoes the unusual procega20zuoxu uwy2 +j79ess 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 pressurpy9rnj *;iti(ized cylinder, the stream of gas feels cool. This is becyri9p (jn*;itause

  94.35: A gas can be taken from state a to c by two different re1*i a:pz 5xc:8 vlozbiversible processes, a→c or a→b→ 1:b*i8vxciazz :5lpo 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 are added to the system. How much work is done by the system during a→b→c?

  06.26: In the Pressure versus V5x. 5q * sz5 wie8*mwq ndmnh*g+mydn/olume graph shown, in the process of going from a to b 60 J of heat are added, and in iwy x5/8ewmqdnd *.sm5h5 +m zngqn **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 heat added?

  96.22: When an ideal gas is isothermally y+o :qer1t6zbcompressed:

  97.15: Which of the following is always true for an isothermal process oy p 03i;:vcufcf an ideal;c:i3uc vf 0yp gas?

  13.31: A monatomic ideal xdf;tm(..vk l/8eoa/l at:rdgas undergoes a reversible isothermal expansion in an enclosed contaiodr l/mvk8ea/ .t;:al tdxf (.ner. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric exp6gdz :g:nfb; 1 bfbsv(ansion followed by an isochoric cooling. Which of the following statements must be true afterv::zbn(1fg6bd f;s bg the completion of these processes?

  11.44: One mole of a monatomic ideal gas 713c u*9gezrcg;c-e m4izavpundergoes an isobaric expansion. In the pror19cagep7g- v c4ecz iuz3*;mcess, 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, iib m72q* l7t4rx n8(tw-usd ipdeal gas undergoes an isobaric process. During the process, the gas 2d qt4u87nmp b rix is(w7lt-*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 il+v8, sin hjhi.p0i2j n whi8l i p.h,+nj0isv hji2ch the pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic proces5z ovr6qj5lep57r gkk7 jh93h s. 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 do5 v ko5g7h53rp rq7jh e9zj6klne on the gas sample by the surroundings?

  03.48: Two completely identiod* al46wcl7mcal samples of the same ideal gas are in equal volume containers with the same pressure and temperature in containers labeled A 6 7owa*m4 llcdand 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 reversible prmvs vy /7hgf(,ocesses performed on a monatomic ideal gas. Process A is isobaric (constant press gfvvm(7y h,/sure). 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 state of P, V, as;(h f ib+g3lxnd T for an ideal gas, which one of the following reversible processes has the most; 3l(+xifbhsg heat associated with it?

  04.45: Container A has a sample of monatomic idr/i;q0 ohtzx. eal gas, while container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volumeztq/0h i;.xro, 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 , and temperat3 .esdf/m)vka qn2hh6ure T . Which of the following processes would result in the greatest amount of energy added to the gas from heat?f/kmv6eh.ad hs q3)2 n

  13.48: Two identical samples of a monatomic ideal gas arvz0no r6v6kcbv. 2r6 ie to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated with the proce66iv2b 06zk.rvcon v rsses?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling