15.25: A gas undergoes the unua;enb ar ,z6he w4as, 5e:tg:qsual 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 cylindeswfgp 37 ;/ii- vpxsft1 n/g6br, the stream of gas feels cool. This is beca/nsi7pg-si/ t1fpv x;gf 6bw3use

  94.35: A gas can be taken from state a to c by two different reversible proce;9d5vmt, zfkj,fc 3 lvqim1 3s.ax -*4fwthz gsses, a→c or a→b→c. During the direct process a→c, 20.0 Jw-q czt313zf5jhm;,ixtf 9mlk4 .fg* av,vs d 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 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 fropd*9vcq9l((0s m ,x :vtutnw sm 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 9vx,( c*n:t qw09lts( udpsmvc to d, what is the total heat added?

  96.22: When an ideal gas is isothermally compressem1 d .*lh)y,osmo5aar d:

  97.15: Which of the following is always true for an isothermo9y(d;/g9ie )omdux g al process of an idee)(du/ ioogm9 x9g yd;al gas?

  13.31: A monatomic ideal gas undergoes a reversible isothercunm(nb+3f hf*u(x /sf vv9+h ,ue9gnmal expansion in an enclosed container. Which one of the following quantities associated with the gas haubf++gxv f(u9( u9nh n n3vs*/ f,mhces a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion l4vgy:jcn) wak+h8w 6lt: 6i cfollowed by an isochoric cooling. Which of the following statements must be true af6w 8v6ccj hi ::all )nkygt4w+ter the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an 6 yvkh.-qqcx*isobaric expansion. In the process, the temperature 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 sux*c-k .yh6q vqrroundings?

  14.46: A monatomic, ideal gas undergoes an i e/4i)enzzmh 4sobaric process. During the process, the gas performs 80 joules of work )m4e enzih/4z 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 k8o ;fros 1p-cr2j)sgprocess on an enclosed ideal gas in whic1so;jr8 2prksg) -ofc h the pressure decreases?

  15.47 One mole of a 9( wzriq onc,jq.jta101e9 *ism fq.jdiatomic ideal gas undergoes 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 durinq9w m. * qoczrjs,jn0ti9.1 ( q1ifeajg the adiabatic process, 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 equal sqa4 2p8 rrvup/*y6w5ocg: wi volume containersiyu:o g6a5q/2 pp4 rrcv w8w*s 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 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 sho2dpjw wje5 atllv;4, .9hfl2h ws four different 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. Process D is isochoric (constant volume). For whp 25lw,hf ;. wd vetla4l92hjjich process(es) does the temperature of the gas decrease?

  16.48: From a given state of c yrqba.+gn9// fnx4 (5zbbx gP, V, and T for an ideal gas, which one of the following reversible processes hafg 5c ya(xbqbb.+9/rx/gnz4n s the most heat associated with it?

  04.45: Container A has a sample ofiw2ioe(pn-b3 6:ii v q 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 procw vi (ni2iqpoib 3-e:6ess 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 9o8l - :of fh.giv tkv)juc* p+ec)w/q, volume V , and temperature T . Which of the following processes would result in the greatest amount of energy added to the gasfo/ut)8+jpgiew9 hcv.kq v o f*:c )l- from heat?

  13.48: Two identical sample(lfg3,xs p:5;k oaum ys of a monatomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct staumpf5l3 y;xka(s o:, gtement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling