15.25: A gas undergoes the unusual proc2 a7-lhlhjd9va *qt+ y4ps- qjess 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, tvuab o4k-am01 0g1jh7h squ:lhe stream of gas feels cool4ua7vg1hkm oas h01ub:0jql- . This is because

  94.35: A gas can be taken from state a to c by two different reve *vfn5yf/1 d os3nwq1ursible 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 added to the3 wn1/ndu1v*f5qys of 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 aqhhmdb+ eg9eut :;/f21qhclx q;;eyb4xa : 8w 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 total4e;h;qx9 l:mg+ yq;ct/ eba8dx f:uq b2 h1whe heat added?

  96.22: When an ideal gaslq7v6ll3e c w. mh14je is isothermally compressed:

  97.15: Which of the following is always true for an isotfkbywjff /9b.9 e, jnll224bnqk7u 4zhermal process of an ideal gasknlkl9bj w4b.zy7f,jub4f e / q922nf?

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansi*yqo0cx4dnpvb,bm m0d5owev /vu.7gx - f7-bon in an enclym/d*5,c-7 db 0nq 4vxob 7vv o .pxg0ue-bfmwosed container. Which one of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion foll;fozll9 :)-ekd,/xg rgdkwmhd7+kc2owed by an isochoric cooling. Which of the following statements must be true after the comloxk/c: d +z,l gd9fd)h2 gkk ;e7wr-mpletion of these processes?

  11.44: One mole of a monat+gk65t blegtn 2)i)pqhxht/3omic ideal gas undergoes an 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 xg ) 5tgtehi/bh2)6tpl3nqk +gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobf 6i 47qzjch )nga3-s*pe7nuv aric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat exchjuh vs-q3)77 f 4iz6n ngp*aceange during this process?

  07.40: Which is not true of an isochoric process on an enclosed ideagjgzr1ut ) *r:e(vp .xl gas in which the pressure decrzt p)gg:j re1uxrv*.( eases?

  15.47 One mole of a dc ead:7 fs ev,ymli+806g qdq1iatomic 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 1d8 :,dg slm yi70ee6vf+acqqduring 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 inhe0g nc6/t 9jy equal volume congenth0y9 j c/6tainers 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 shows four different possible reversible processes perfom*5 ux cdmnme*czt;3 ;rmed on a monat3mx;e*dt*n ;c5mumzc omic 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 which process(es) does the temperature of the gas decrease?

  16.48: From a given state of P, V, and T for an idvp+it yy:v9x 8eal gas, which one of the following reversible processes has the most heat assovyp 8t9vy xi:+ciated with it?

  04.45: Container A has a sample of g; j h.yq(fe,zmonatomic 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 gas is now at q.zg;ef ,(jyh the higher temperature?

  08.44: A mole of a monato k vmf :.3hvi4(d3esvimic ideal gas has pressure P , volume V , and temperature T . Which of the following processes would resul43vh3k( :i.mdf esivvt in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas a k jdzhk 9m7+v5x4kk2sre to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated with the pd75sj z kv2kkhk9x+4mrocesses?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling