Notifications
Clear all
0
29/09/2021 12:22 pm
Topic starter
What is the free energy change for the conversion of 1 mole of water into steam at 373.2 K. The heat of vaporization (ΔHv) of water of 373.2 K is 9.1 kcal mol–1. The entropy change is 25.5 cal/mol deg.
(a) -401.6 cal/mol
(b) -416.6 cal/mol
(c) 516.5 cal/mol
(d) -516.5 cal/mol
1 Answer
0
29/09/2021 12:24 pm
Correct answer: (b) -416.6 cal/mol
Explanation:
ΔG = ΔH - TΔS
∴ ΔG = 9100 - 373.2 x 25.5
= -416.6 cal mol–1