15.25: A gas undergoes th j4b/atnthz;nx+zs4z n8 *5u gltm.t (e 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 all +.;f(jeo d0rdeq7y pressurized cylinder, the stream of gas feels cool. This if r 7e0.oddl;ej +qyl(s because

  94.35: A gas can be taken from state a tole. kzvu);m8 i-g/cj fal-ug ; c by two different reversible processes, a→c or a→b→c. During the direct process a→c, 20.0 u;u-g-kj 8fzl.)c/v a;i em glJ 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 pr ol 9*a(;swyvzqhykd -x6:6from a6wyv6zaxpqsdk-*yo ; h (9:rl 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 total heat added?

  96.22: When an ideal gas is pb3aej0w /8 a6k:ma prisothermally compressed:

  97.15: Which of the following is always true for an isothermal:y4 sdmv an ar;2++n)no/tqum process of an ideal:mdoay4s;2 mqnu/nt )nr++va gas?

  13.31: A monatomic ideal gas cxd9bfzzbci 0u gsojc a .-y-,* :/0awundergoes a reversible isothermal expansion in an enclos a:00dx bcc,-o*jw.iy9fs -zubz /g aced 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 followed bd ;go0 6gotmx*y an isochoric cooling. Whic ;oxg60t*do gmh of the following statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes go6 wnq7e zi+tp.lz+, 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 goq.l ipg 7twzn6e ++,zas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric procn2/jzl(afkcj/* l l)y1vg lk1ess. During the process, the gfl1yv/)2kc ll*/1jn zg(la jkas performs 80 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 process on ani;;vcnk ny(;xd g k4fj(9mp7h enclosed ideal gas in which the pressure decrease( p7xdgj(fv c4;;kh9nn ky;m is?

  15.47 One mole of a diatomics-kh ss vtgz2(40p y1b7kw jp3 ideal gas undergoes a reversible adiabatic process. The pressure and volume initially are gpv7k 0 s-z4(hy2tjb1sgspkw3 iven 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 surroundings?

  03.48: Two completely identical samples of thec/pmwl f xw-s:(jqc ve*l+wt,),mzv3 same ideal gas are in equal volume containers with the same pressure and temperature in containers labeled A anw fmwptlcl,jv3 vmw)+s (-zcq*:/, exd 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 processeswn*z w hit8y8s2o5up5 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 isuy8 w552hn8 oztp*wsi ochoric (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 gc t+*pzty( g.g3,vlszm6f8vm as, which one of the following reversible processes has+yv3mp6vf8,(ms t .gtc *zg lz the most heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while container B hast n40adbu4(m ijxnn5)7zv3m s a sample of diatomic ideal gas. Theuzm)b30anx j4sm7n5 vndt ( 4i 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 the higher temperature?

  08.44: A mole of a monatomic ideal gas has pressure P , volume V , and temperaf0r *dflvk 6h9ture T . Which of the following processes would result in the greatest f*60h vdlkf9r amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are tbl+ ip7tr;onu469sh u o undergo reversible processes. Which one of the followlp;+ 9tuio4r7b6u n shing choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling