For a given reaction, Δ_rH = -19.9 kJ mol^-1 and Δ_rS = -55.5 J K^-1 mol^-1. The reaction will have Δ_rG = 0 at ________ K. Assume that Δ_rH and Δ_rS do not vary with temperature.

Name: For a given reaction, Δ r H = -19.9 kJ mol -1 and Δ r S = -55.5 J K -1 mol -1 . The reaction will have Δ r G = 0 at ________ K. Assume that Δ r H and Δ r S do not vary with temperature.
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Question

Quizplus · Accepted Answer

ΔrG = ΔrH - TΔrS. Setting ΔrG to 0 and solving for T gives T = ΔrH / ΔrS = (-19.9 kJ/mol) / (-55.5 J/K/mol) = 359 K.

For a Given Reaction, ΔrH = -19

For a Given Reaction, Δ_rH = -19