Practice question
Question
For the reaction 2A(g) → B(g) , Δ H = -40.00 kJ/mol , Δ S = -100.0 J/K·mol at 300 K. What is Δ G ?
Explanation
Δ G = Δ H - TΔ S = -40.00 - 300 × (-0.1000) = -40.00 + 30.00 = -10.00 kJ/mol . The negative Δ G indicates spontaneity at 300 K.
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