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MHT CET Chemistry question

ChemistryThermodynamicsMHT CET

Given that : ; kJ and ; kJ. The for the reaction is

Answer: (B)

Solution

By Hess's law, C(graphite) → C(diamond) = [graphite → gas] − [diamond → gas] = 716.7 − 714.8 = +1.9 kJ; (a) is

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Question ID VK-064172