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    Chemistry
  3. Study Set
    Chemistry The Molecular Nature
  4. Exam
    Exam 20: Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions
  5. Question
    Given: H<sub>2</sub>O(l)  H<sub>2</sub>O(g)  H° = 40
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Given: H2O(l)  H2O(g) H° = 40

Question 1

Question 1

Multiple Choice

Given: H2O(l)  H2O(g) H° = 40.7 kJ at 373K What is the entropy change in the system (S) when one mole of water vaporizes at 100 °C and a pressure of one atmosphere?


A) 407 J/K
B) -407 J/K
C) 109 J/K
D) -109 J/K
E) J/K

Correct Answer:

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