15.25: A gas undergoes the un,h eb/.yjogm 2usual 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 c-+s kecunohbl( jaxb +9i;h(*ylinder, the stream of gas feels cool. Thislu(nsxk iob(ehb;9-+j c*h+a is because

  94.35: A gas can be taken from state qwpmmmd 7yz:lxy/z3 ku)q5de30 )/ kn a to c by 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→cn7 m)x0) lmyemw5q/ :pd/qk 3k3zdzy u, 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 cl uy8+b34r- ls-yu hvof 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 goinguvbsrh+-8 ly l -uy3c4 a to c to d, what is the total heat added?

  96.22: When an ideal gas is isothermally compresohnu/d:ld *6 nsed:

  97.15: Which of the following is av f.xnn32p t1 bxqpx10lways true for an isothermal process of an ideal gas qx30.b 1 xfppxn2ntv1?

  13.31: A monatomic ideal gas undergoes a revrre ;t7nvn )bvp- p-g,ersible isothermal expansion in an enclosed container. Which on)pnrp g-rtv-7v b,en;e of the following quantities associated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isochozw7 zzxsz+gv)32 n*airic cooling. Which of the following statem+3z2 i z)ng7v*xwzzasents must be true after the completion of these processes?

  11.44: One mole of a mop(qy5t*f- m1sins 2lq natomic ideal gas undergoes an isobaric expansion. In the process, the temperature ofl2stn *qyqi5fm(p- s1 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 gas und zrk*am-uk4 y;f+ ejh0ergoes an isobaric process. During the process, the gas performs 80 joules ofzf k*;h a+0ume-4rykj 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 an enclosed ideal rdyv,h3kk 2*0( ndozr gas in whi,oyzrk d*( hd3rn2k0vch the pressure decreases?

  15.47 One mole of a diatomic ideal gas undou.)7 inlzmbof 0 7ce(e u9w-qergoes 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 during the adiabatic process, how much work was done on the gas sample by tzi(o)q e0f lu u7-.9nwcmebo 7he surroundings?

  03.48: Two completely identical samples of the s++p 6wqaen t(uame ideal gas are in equal volume containers with the same pressure and temperature in containers labeled A and B. After the processes are performed on thea(+n qute 6wp+ 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 reversibdwh/izbpw;k-4a v1 4kle 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 which process(es) does the temperature iww4b v; 1h4kazp-/ kdof the gas decrease?

  16.48: From a given state of P, V, and T aaecpdq4)tc/v7ip( ;for an ideal gas, which one of the following reversible processes has the eap)cat7v(pc;d q 4i/ most heat associated with it?

  04.45: Container A has a sample of monatoutj)75(dxww q9hef q -w3wj d5mic ideal gas, while container B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volum9u wdqjw(qxdjw7355 t-e hf )we, 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 iddezh(*m bvd1: eal gas has pressure P , volume V , and temperature T . Which of the following processes would result in thbmvhd:e1z d( *e greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas . 71:0ctxrru b vv;kmaare to undergo reversible prtrab ;rv1:uvm0 .x7k cocesses. Which one of the following choices is a correct statement about the heat associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling