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in Chemical thermodynamics by (58.3k points)

What is the free energy change (∆G) when 1.0 mole of water at 100⁰C and 1 atm pressure is converted into steam at 100⁰C and 1 atm pressure? 

(A) 80 cal 

(B) 540 cal 

(C) 620 cal 

(D) Zero

1 Answer

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by (64.7k points)
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Best answer

Correct option (D) Zero

Explanation:

∆S =∆Hvap/T

∴ T∆S – ∆H = –∆G = 0

∴ ∆G = 0  

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