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Author Question: Find the change in entropy (in J/K) when 5.00 moles of an ideal gas undergo a free expansion from an ... (Read 138 times)

ahriuashd

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on: Jul 28, 2018
Find the change in entropy (in J/K) when 5.00 moles of an ideal gas undergo a free expansion from an initial volume of 20 cm3 to a final volume of 100 cm3.
 a. 71
  b. 52
  c. 67
  d. 191
  e. 208

Question 2

An ideal gas is allowed to undergo a free expansion. If its initial volume is V1 and its final volume is V2, the change in entropy is
 a. nR ln (V2/V1)
  b. nRT ln (V2/V1)
  c. nk ln (V2/V1)
  d. 0
  e. nR V2/V1


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Loise Hard

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

A


ahriuashd

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


Loise Hard

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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