Part A What is the sign of for the process depicted in the figure above? Part B

Question

Part A

What is the sign of  for the process depicted in the figure above?

Part B

What is the sign of  for the process depicted in the figure above?

Part C

If energy can flow in and out of the system to maintain a constant temperature during the process, what can you say about the entropy change of the surroundings as a result of this process?

2. The pressure on 0.600 mol of neon gas is increased from 0.730 atm to 1.19 atm at 100 ?C.

a). If the final pressure on the gas is 1.19 atm , calculate the entropy change for the process in J/K

Explanation / Answer

1. Part A

S>0

Part B

H>0

Part C

Ssurr<0

2. S = 2.303nRlog (p1/p2)

   = 2.303*0.6*8.314log(0.73/1.19)

   = -2.4381 j/k

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