15.25: A gas undergoeh/ qx5n+c 6wwuq(jm t.o5 3 fuogn5ee8s the 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 a pressurized cylinder, the stream of gas feels cky*eu1hwld4e51 8 ktb ool. This is becabkw eel 51khy41ut* d8use

  94.35: A gas can be taken from state a to c by two different reve :f)lc1fvfx6txu(t0 f k(ao a,om8i8orsible 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 addeka fixfa8omo,fv:xc( 1lt6(u)t 0o8f d to the system. How much work is done by the system during a→b→c?

  06.26: In the Pressure versus ;o8 .e wcb-,6umxwni2 b d8vebVolume 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, what is the totaemwx 8o. b2wdv-b ,e;ib 8un6cl heat added?

  96.22: When an ideal gas is isothermalhs9galfq69 ; xct /m0cly compressed:

  97.15: Which of the follow pi :p,cfnc5z5ing is always true for an isothermal process of an ideal gas?c 5czf ,:npi5p

  13.31: A monatomic ideal gas undergoes a reversible isothermal expansion in2luh.ha-mcs 4 an enclosed container. Which one of the following quantities associated with the gas has a vahac2-lsumh4 . lue of zero?

  09.33: An ideal gas undergoes an isobaric expansion f)7r mj x1jy qt5q*.hczh:*)b:xiwvz y ollowed by an isochoric cooling. Which of the following statements must be true after the completion of thy b) zvc::r w)5hz iyj qqh*xxjm7.t1*ese processes?

  11.44: One mole of a monatomic ideal gas undergoes an isobaric expansion. In ty vde2)ua 2 0dw, xy.l5t3/vac s*nxuzn;s:yahe 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 dony ynn0 sxddu v:a ua.y22)c3,/*a5 ezvtxs;l we by the gas on the surroundings?

  14.46: A monatomic, ideal gas undergoes an isobaric process. During the :,i6pq2 pcloa process, the gas performs 80 joules of work on the surroundings. Which one of the following statements best describe6,2 :i acolppqs the heat exchange during this process?

  07.40: Which is not true of an isochoric process. iowq+;,br ps on an enclosed ideal gas in which the pressuri.op+ bq sw;,re decreases?

  15.47 One mole of a diatomic ideal gas underr+f l0szfx 0seaf3bsdg+ 7l6splb;3(goes a reversible adiabatic process. The pressure and volume initially are givelg67sb(sl30xf d bp+;s+sfrel0 zf3an 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 the sa x p: zf3xg9*/nogmpl6me 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 nlxpxzm :9f/g3 6o* pgthe 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 differenxc:zqrfhi* z45p9phh,3v 9;j pvsf c9t possible reversible 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 temperaturcp q5, h9hv vzs3*9h94 fpj;ifxpcr :ze of the gas decrease?

  16.48: From a given state of P, V, anz(*jom 7 .0ypd/ar9 j0f cy nzx4hya0jd T for an ideal gas, which one of the following reversible processes has the dnx/ jf7y 0pay9 zm*0ha0(corjy4 .zjmost heat associated with it?

  04.45: Container A has a sample of monatomic ideal gas, while container vglb8)trrk *6b3wdb2 B has a sample of diatomic ideal gas. The two gases start with the same initial temperature, volume, prevbw63kg8b)d* r2r lbtssure, 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 tx79avq/*ycvwn -tuo 4t3c wa 3emperature T . Which of the follaotw/ 947cuwqnv3v*tx- y3 c aowing 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 n4frj ojrh+p4+ e e5,fundergo reversible processes. Which one of the following choices is a correct statement about the heat associated with 4on, 54ee +pjfrjhf+r the processes?
Process 1: An isochoric pressure doubling
Process 2: An isobaric volume doubling