15.25: A gas undergoes*p om 0npf ;qll/2lm8c 4n5-1xj ptimh the unusual 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 cylinder, the stream of gas feels coo7 d+yv)js,q1prlj p 7kl. This,ypqr7ljd+k17j )p vs is because

  94.35: A gas can be taken from state a to c by two diff,sr2 yzy+sl 88ook)9ljs8qfq+n7ne p erent reversible processes, a→c or a→b→c. During the direct process a→c, 20.0 J of work s7+ s+,j8l nq2rl k8ponf8) 9zseqyoyare 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 Volume graph shown, in the process of going fromr(fvtqnmdc 17 .jt1x /v4emq- a to b 60 J of heat are added, and in the process of going froqj/n t7dfqvcem4r -v(1t .xm1m 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 t.wkbh(bcff- c 27fkur ikum0w8p)9td20 wd+ compressed:

  97.15: Which of the following is always true for an isotheri0j3g 0 fqh8xg2g bak3mal process of an ideh2gfk3i q3jbx0 8 ag0gal gas?

  13.31: A monatomic ideal gas undergoes a reversible isoth9 g vwx63gvstoqtr8 54ermal expansion in an enclosed container. Which one of the following quantities associated with the gas has a value of zero4vwvo stgx63qg 9r58t?

  09.33: An ideal gas undergoes an isobaric expansion followed byj0;dlu1h u4yr an isochoric cooling. Which of the following statements mus4h 1;urlj0 duyt be true after the completion of these processes?

  11.44: One mole of a monatomic ideal ;;hf .mdy47w5- n oc tbwnp(r ycf+y:9(wbjfzgas undergoes an isobaric expansion. In the process, the temperat;nz o+b yhrf w;f jpwnycwd5t -c(y. 47(bfm:9ure 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 ga54ioirr9 ji9l s undergoes an isobaric process. During the process, the gas performs 80 joules of work on th4i r9oi59lj rie surroundings. Which one of the following statements best describes the heat exchange during this process?

  07.40: Which is not true of an isochv m //4fexaj1kg,y 3axgru-v7oric process on an enclosed ideal gas in which the pr /4gu1m3kj avf xxar,vg7ye /-essure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversibq3p-6/gvwzq;j vm 3utle 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-ptu w36m j v3gvqz;q/ much work was done on the gas sample by the surroundings?

  03.48: Two completely identical samples of the same bgdpghy05 f3q7;3emk5tva6 nideal gas are in equal 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 B, which is at the higher bv35n 6qmd 3 hyt07f;kapgeg5temperature?
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 reveugim5 8 4g(6iys bc 9v tixe0,fh,1qjmrsible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothermal (constant temperature). Process C is adiabatic. Procesqmcii1im , e0(g6b tys54vhuf 8,9jxgs 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 ideal3+zpv s gxi9d2 gas, which one of the following rz3s2+x 9pvdig eversible processes has the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal ga x69xtxe2 fa5ss, 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 adiabat5a e2xt sx6x9fic process that cuts the pressure in half. Which sample of gas is now at the higher temperature?

  08.44: A mole of a mona av312 kek)z8-smxwhftomic ideal gas has pressure P , volume V , and temperature T . Which of the fol2k) 1esxmv a38-fhzk wlowing processes would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas a + dnplm.h8e.hre to undergo reversible processes. Which one of the following choices is a correct statementm +pd8lnh e..h about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling