15.25: A gas undergoes the unusual prisz i 32u/6z3;s nb dk;ojsg6pocess 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 esca2u(5f bc*)jg*u ebtv t (fl,z* e9spdzpes from a pressurized cylinder, the stream of gas feels cool. Thd5)fc(zt f9begs*l*e*juuv(zpt, 2 bis is because

  94.35: A gas can be taken from state a to c by two di-x;ty6kn,vrt a :, y33i jezxa;u yd5ifferent 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. Da iry;u v k a-j,;xyznd3et:x5i3yt6, uring 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 t:q; vo2 dze)obhe process of going from a to b 60 J of heat are added, and in the procesz;b dvo2)qe :os 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 comvvszt3u : c0296xqeal pressed:

  97.15: Which of the following is always true for an isoto tw)rq j58nzkz*o f;0yy/t/bhermal process of an idea tyt8w y0/fzo r )5bjoknzq;/*l gas?

  13.31: A monatomic ideal gas undergoes a +t9t8 oz; risdreversible isothermal expansion in an enclosed container. Which one of the following quantitiero;i z8dt 9+sts associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expaant:pxe4:cr9 8v 3d9iayj* gansion followed by an isochoric cooling. Which of the following statements must be true aft xdeacrtg:* a4 38:a v9yjpi9ner the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. In thebgka;a;h2fb2 mhma6.s9yv(t process, the temp ;6bambvt2m;(h h9fga 2 ay.skerature 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 gas undergoes an isobaric process. During the processndk2u ox 78+.e6vl) ql gk34ucbxe3qx, the gas performs 83d qelxc3n u kovg 6xux +.4b82qe7kl)0 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 zqx9 ,zccyo:4s gj +l8 ce8*qeprocess on an enclosed ideal gas in which the pressure dec+e4c,8q q* g jsyzc loez:9x8creases?

  15.47 One mole of a diatomic ideal gas undergoes5cnw5 sldot -azx06+l 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 process, how much work was do l6-5n a0+xlwc oszd5tne on the gas sample by the surroundings?

  03.48: Two completely identical samples of t3y:e e2ip)n ws*+oe nshe same ideal gas are in equal volume containers with the same p2ew+sn *ei:eo )3ns ypressure 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 different possible revers 4mzz7da5 am)rp 3q*:ozkd(d dible processes performed on a monatomic ideal gas. Process A is isobaric zao4mp dz*k5dm3z7r :qd)da( (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 state of P, V, and T for an ideal gas, which one+ 5t-fmgej-2c p-jm sb of the following reversible processes has the gp -mf-+jc-sm b5t j2emost heat associated with it?

  04.45: Container A has a sample of monatomiconrx(yy 6+ po4ooy. n3 ideal gas, while container B has a sample of diatomic ideal gas. The two gas .ono3 xno6yy ry4(p+oes 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 at the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure P , volume V , and temperakck; k cvlj-jm tjh:.:;0eo *zhjl4 64 l(fwnpture T . Which of the following poc4lkphn6;4:kjlzfmht k*cj( v l0 :j e-w.;jrocesses 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 roa3w/hd l.ufk 2r3)r xeversible processes. Which one of the following choices is a correk3r w dro32)f x./uhlact statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling