15.25: A gas undergoes the unusual )mr-iff xha:hk m3j+6process 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 cylind/ :tej0mlv6grer, the stream of gas feels cool.etm0v l:6gjr / This is because

  94.35: A gas can be taken from state a to c by(m;xt j50-o mykp 3vjb 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 ar3j- jbpvy;ot m kx(5m0e 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 ofe3 3/tclq0u.w61qax g p k:qbj going 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. In the process of going a to c to d, what is the 3w36k1g:cp e/l0aq.bqu tqjx total heat added?

  96.22: When an ideal gas is isother. 4,:xwvcrue6*ngb.h6bc6gi ij w c-i/l-wmgmally compressed:

  97.15: Which of the following is always true for an isothermal processizyc scmh 9l2q1xq+u .u.9p o13igk*us a96 gy of an ideal + p9i myk3qoichz9xl2a9quc1uss1 g . u*.g6y gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansion in an enack, n.m-x8hnc)5ek+o 9 j elnclosed container. Which one of the following quantities aonk- +,e8.mka )5l9ncnexc hj ssociated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isob2l0ufb0:zt.g t0 dn8ln*wrfnaric expansion followed by an isochoric cooling. Which of the follo2 0u.tfbzdn n*0l glfr:w8nt0wing statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion.ap):.rruud7(;a 6p4s .mmio a)s smss In the process, the temperature of the gas increases from 300 K to 500 K. Whicir(a7;us)6o 4) s.das pamrmus p:.ms h 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 t/8cqw2xds p /gj-s;in he process, the gas performs 80 joules of work on the i 8//qpgds ;2xcw s-njsurroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of anmvzsvwfq(: s q/7-e5w isochoric process on an enclosed ideal gas in which the pressure des:5q(w vwf /e7msz-q vcreases?

  15.47 One mole of a diatomic ideal gas undergoes a rev1: yzvj0y, nwxersible 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 done on the gas sample by the s1: wnxz, 0jyyvurroundings?

  03.48: Two completely identical samples of the same idl8 jpir.hg7s -eal gas are in equal volume containers wi -lgsh 8.ipjr7th the same pressure 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 differenhljhhch) 9 2+dt 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. Pr+c2h)dhh9 jh locess 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 n2b bn r6.;stb,4nq9avl3rxcof the following reversible processes has the most heat associated with rrb .l6vb2,n;t b 9nq4c3nxs ait?

  04.45: Container A has a sample of.nztoxye2 1 l he796md8eiok6 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 6eloh6x9m.eiy 7 8z t1kdeon2gas is now at the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure P , z hpf -q1b/.knvolume V , and temperature T . Which of the following processes would result in the g-hnp f1zb.k/ qreatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to uno9lj/j vq mf;3jdll *i-l((el:-m uf edergo reversible processes. Which one of the following choices is a correct statement about the heat associfl /9ijlo:llfm3jq (dum*v ee-( -;lj ated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling