15.25: A gas undergoes the unuyk5 b z+yuy; r1(jc0r;oovg/bsual 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 pressur(qw+3mow f(w jized cylinder, the stream of gas feels cool. Thiw(mw+ wq( jf3os is because

  94.35: A gas can be taken from state a to c by two d1 lpi64bt-r/xg:jcu zna g9a2ifferent 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 tblz/4ijn9a catxp:g r1 g26 -uhe 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 ver .a1x g: (8 xegiij6soozmguu*85c+ydsus Volume graph shown, in the process of going from a to b 60 J of heat are added, and in the process of going from b 6(5gxo 8y1j*emsi8izxg : caug+do .uto 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 isot7yqo 9owe6 2zxpe8 i3r.gqba,hermally compressed:

  97.15: Which of the following i01a5mcm *nxo4a + s(dwzvi 3yn-bxnf-s always true for an isothermal process of an ideal gas?(cw x b*yi -1xv 5+3mfzd4ms0-onanna

  13.31: A monatomic ideal gas undergoes a hj8v al1-/la)ml-8 :a:yi kku+vqwx0ok vt6dreversible isothermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value y j ktuo-al:wvkqil1 v0lm:-kd8 a/hx8)6a+vof zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isocte :uo9q;:xajh7mwka1e 8)uc horic cooling. Which of the following statements must be true after the completion of these prouh:)m 7jxe9 oaw;ecuk aq 18t:cesses?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion(+1r6xdxzp wl. In the process, the tz6rx (x+lw p1demperature 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 ga1cb1jf/*orsy ec+ (8yb r v1xw,5babm s undergoes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the,f/1orcy(8 cwbxv+15 b*mbe yras1b j following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochoric process onkt.6a78*nnjo 2 rdilc an enclosed ideal gas in which the pressure deck *7r on.inj8cd6al2 treases?

  15.47 One mole of a diatomic ideal gas unde*i5s5s) *m 6fv3v ncse evc9itrgoes a 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 procesev)5fi5tvi3n 9cmcsvs6 **s e s, 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 equb /c y/6 )xj)jqsfk3ueal 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/6 b sjje/uf)cyq)k 3x 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 pogv9kc2lr pz +2ssible 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) does the temperature of the gas decre +prv9kz2cl g2ase?

  16.48: From a given state of P, V, and T for an ideal gas, which one of th,7/;*kheje , jxm zxlve following reversible processes has the most heat associated with i,lz,;/x 7mjeek*j xvht?

  04.45: Container A has a e2 b2me48jmq2z)bti 4x oji9 rsample of monatomic ideal gas, while container 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 process that cuts the pressure in half. Which sample of gas is now ziqj)rt2ij xb oee424m892 bmat the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure P , volume V , and temhk j qn; 1lqu+hv,9 )usqr+.jkperature T . Which of the following processes would result in the greatest aml srkj.n; +u 9+j)q,huhkqvq 1ount of energy added to the gas from heat?

  13.48: Two identical 4n. ub7 *) dcnhk7iodw,(cicx samples of a monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associci 77ni c*)ddcnkbx, u4 h.(woated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling