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JEE Main20205 Sep 2020Evening ShiftChemistryThermodynamics (C)Actual

For a dimerization reaction, 2 A ( g ) → A 2 ( g ) at 298 K , Δ U - = - 20 kJmol - 1 , Δ S - = - 30 JK - 1 mol - 1 ,then the Δ G - will be …..J.

Correct answer

13538

Step-by-step solution

From Δ H = Δ U + Δ ngRT Δ = − 20 × 1000 − 1 × 8 .314 J / m o l . K × 298 K = − 22477 .572 J . Δ G = Δ H − T Δ S = − 13537 .572 J = − 13538 J

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