15.25: A gas undergoes the unusual pro)r- ghn:frn *) y+ezdmcess 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 froaq(;t30e q l alwsh5rkl6pf-/m a pressurized cylinder, the stream of gas feels cool. This is becl0a6-5sqrh eqk;wl/pl f(a t3 ause

  94.35: A gas can be taken from state a to c byqqp 1 pfmt2 g,ql8y 8ps:0rg0k 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→c, 25.0 J of heat are added to the system. How much work is done by the system during a→b→lq mq0fgprsp:qk81t 2gy,8 0pc?

  06.26: In the Pressure versus Volum g2n b )835,nth x13a g+iczbvfertzi3e graph shown, in the process of 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 going a to c to d, w ibvatzzr3fn tb1ec8)i2g,g 3 x5nh+ 3hat is the total heat added?

  96.22: When an ideal gas is isothermally compressed2 hw3p8mvox+y3gldp (:

  97.15: Which of the following is always true fo3 lfg8.cgo5:y.nwfom r an isothermal process of an idea5gylf:8o3gmfo. cn. wl gas?

  13.31: A monatomic ideal gas undergoes a reversible isothermad-;p- jq2 mgs/lc7ynt l expansion in an enclosed container. Which one of the following quantities associated with the gas has a p-g2 ;l- / cd7ntjysmqvalue of zero?

  09.33: An ideal gas undergoes an isobaric expansionsyl w c,w9rdpb4s3w63 followed by an isochoric cooling. Which of the following statements must be true after the ry w,db493l6wcpwss3 completion of these processes?

  11.44: One mole of a monatomit1g41x9w. mxzvwjdu; c ideal gas undergoes an isobaric expansion. In the process, the t. m x;w11z4 t9vxjugdwemperature 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, i85i lv)3kvu d weqe-r-deal gas undergoes an isobaric process. During the process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describes the heat exchange during thi8e- vlr-iwvdkq e35u) s process?

  07.40: Which is not true of an isochoric process on an enclosed i,soij82p-xy mmef c 3.deal gas in which the pressure decreas-2e3op.i,8 sxfmmycjes?

  15.47 One mole of a diatomic ideal gas undergoes a revc-;9 7r z*aoatl-um joersible 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 thar*c -ltmz-7 ;joa9uoe surroundings?

  03.48: Two completely identical samples of ( + 54 whuvd;exw-yn9 huqhuas)1wwn-the same 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 the gases in containers A 14ux;n(a-+u y5hd hn-svquh ) we9wwwand 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 proce/jo+vh eyktts*-8:o msses 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 of the gas decrease?yho:*ve+t m/8js k -ot

  16.48: From a given state of P, V, and T for an ideal gas, which onv,imt, poz; od6n/ :bte of the following reversiblvz:;tp , b/dmtoio,6 ne processes has the most heat associated with it?

  04.45: Container A has a sample of monatomiqgmqeuq5;9j+ mb mm71 .woz4rc 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. Eaq;w qmz4mg 1 5e+9b7 .umqomrjch 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 ha rk1l;6i 1kd9ctse n,as pressure P , volume V , and temperature T . Which of the following processes 19,6 tncedi k 1r;salkwould result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a mona ozc1un ((axmz3*4vuu tomic ideal gas are to undergo reversible processes. Which one of the following choices is a correct statement about the heat associated with t amzc(1(4nuuxz*3 vou he processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling