15.25: A gas undergoes the unusu/k+ik6; 6ef snln1y bual 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 cylinder, the stru qs 8*9k b7uervxzy5.eam of gas feels cool. This is r7k89 suz5. uebyq*vxbecause

  94.35: A gas can be taken from state a to c by twot uuw0y op0e e1/yv0bo.f3)io different reversible processes, a→c or a→b→c. During tfo3w0e/yi ov 0o.uy0epbtu1)he 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→c?

  06.26: In the Pressure versus Volume graph shown, in the pr h7sj9as ne* i)oku a2o(s5rp4ocess 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 tno 4kiju5s) op s2ras(h7 e*a9o c to d, what is the total heat added?

  96.22: When an ideal gas is czh s-,(op p5i td9yx w/9c/brisothermally compressed:

  97.15: Which of the following is a 1hsem v+v6r5hlways true for an isothermal process of an idea165msh+ rvh evl gas?

  13.31: A monatomic ideal gau 0vf0,is 9ll)i;dpvos undergoes a reversible isothermal expansion in an enclosed container. Which one of the following quantities aui,vs;o 0ldiv p0l9f)ssociated with the gas has a value of zero?

  09.33: An ideal gas undergoes an isobaric expansion followed by an isochoric cdgjv /mkk j3ss 5f8*7ael0g v7ooling. Which of the followfsm7507 v/ gdv jak38 k*jselging statements must be true after the completion of these processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansioxqaog xew8s*/7 f32kjpa-+ dbn. In the process, the temperature of the gas increases from 300 K to 500 K. Which one of the following choices besepka8oj3bsdxg+*w x7 fa-2/ qt represents the amount of work done by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. During the prj n+bl(q4k j(cho 20fiocess, the c(bfj 0+ q4nhjkl io(2gas 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 an enclosed ideal gas sqj//o i96c+k ltbn4e in which tejb/ 4so9 +/n k6tlqcihe pressure decreases?

  15.47 One mole of a diatomic ideal gas undergoes a reversible adiabatic p( iqk3my /a0vbs114wb sy-udcrocess. 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 samplyck41md1/ 3ubsav 0(qs yw-bie by the surroundings?

  03.48: Two completely identical samples of the same ideal gas are in equal vo/*ne /q4yhvq42 1xllj5scnn clume containers with the same pressure and temperature in containers labeled A and B. After the processes are performed on the gases in container /s*1 n4l2y h4q5 cnnxlvq/ecjs 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 diagraspj.,z: j3n5fx; akaklx/8 pj m shows four different possible reversible processes performed on a monatomic ideal gas. Process A is isobaric (constant pressure). Process B is isothe,l5fsz:jpx; pxk8j n/ a.3jkarmal (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, andkfdm2sz e+bh bjq().8 T for an ideal gas, which one of the following reversible p2jbs kbqm+h)zfd(. e8 rocesses has the most heat associated with it?

  04.45: Container A has a sample of mya2izgkx8;i6l 7; upoonatomic 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;up;kyi2z7i8goa 6lx is now at the higher temperature?

  08.44: A mole of a monatomic ideaz1 v+ pnuaw *6fa+ 8c5fzu3qizl gas has pressure P , volume V , and temperature T . Which of the followin azfuz*+c6q u+ipnw 38afv1z5g processes would result in the greatest amount of energy added to the gas from heat?

  13.48: Two identical samples of a monatomic ideal gas are to undergosskyu4gp) jzy)d- v/- 1dhjy 6 reversible processes. Which one of the following choices is a correct statement about the heat sjv 6)-dkjdz1shyupyy-4g/) associated with the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling