15.25: A gas undergoes the unus+ hsp bi p)q415w4x2z 8plmy,ontc6*s;acoyg ual 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 cr 8cjklg8 p:w3kd4 it2ylinder, the stream of gas feels cool. This is bdli 3848r wkcj 2:kgptecause

  94.35: A gas can be taken m3y8 smowwz2j+1f*pc from state a to c by two different 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 the process a→b→c, 25.0 J of heat are addewfmp+1y o2 zjcw8s3m *d 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 kd p.m(jz;7zfq 5bq9 1was)zca 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 goj5z9zfwa7m . c(ds 1;qp)qbkzing a to c to d, what is the total heat added?

  96.22: When an ideal gas is vno g r dj)h5sh08):beisothermally compressed:

  97.15: Which of the v3i ;fsrqv97g following is always true for an isothermal process of an idearqv 7s3;9ifvgl gas?

  13.31: A monatomic ideal ,10i; fdr eczeaz-6lh gas undergoes a reversible isothermal expansion in an enclosed rl60h ,ad ze;f c-ezi1container. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isochon;4zu2pl te /2 wkopa8ric cooling. Which of the following statements must be true after the completion of these propp w2u /nztoka24e ;8lcesses?

  11.44: One mole of a monam6 1u gb gx a3fjlg6:*qw:2yaxtomic ideal gas undergoes an isobaric expansion. In the process, the temperature of the gfb:mq 2 l1x* xu w6gagy:3agj6as 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 process. During z mfsl4 xhl)s x6zp3ggf3/x2dy( 9 ng)the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat exchange during thix9sn ls)/zlf( 3dmyxh26 xg z3fg)p4gs process?

  07.40: Which is not true of an isochoric piplr/f ;9g +uvyqr;o zw +l2g;zq,r g006vcf mrocess on an enclosed ideal gas in which the prg +yv gf g;rvoz 9+wmq0l;/f z,r0u2qi6lcp;ressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabf i4 dvgr,jycp6lr:+5k4x ks9 atic 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 process, how much work was done on the gas sample by the surroundskdrf546rx ij v:kg pc4+ly,9ings?

  03.48: Two completely identi/yj :,6bmcynx n-*ojt cal samples of the same ideal gas are in equal volume containers with the same pressure and temperature in containers labeled A and Bb j- :yno,tnj6/*ymxc. 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 revs8kdlr/kev0 : ersible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process C is : s vdel/r8kk0adiabatic. Process D is isochoric (constant volume). For which process(es) does the temperature of the gas decrease?

  16.48: From a given state o1 v;p7 zqx7u.ojgzgq+f P, V, and T for an ideal gas, which one of the following reversiblq7zg x;g7v1 o.qpz+jue processes has the most heat associated with it?

  04.45: Container A has a sample of :enm t xjie(9d c)to;7ma0f5tmonatomic ideal gas, while container B has a sample of diatomic ideal gas. The two gases start with tted i9 5ejtn c0) xao(m:7mtf;he 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 brk 60dp ,stk6P , volume V , and temperature T . Which of the following processes would result ins0 kr,t6k6dbp the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a mopyxxv6 697x (wx u3zd agzb;y w9u-+qynatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated with the pro7gux6xa 9uyd+-wy6x9z b ;(zpq 3 wxyvcesses?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling