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MHT CET Chemistry question

ChemistryThermodynamicsMHT CET

One gram atom of graphite and one gram atom of diamond were separately burnt to carbon dioxide. The amount of heat liberated were 393.5 kJ and 395.4 kJ respectively. It follows that

Answer: (C)

Solution

Both give the same product, so the extra 1.9 kJ released by diamond means diamond has higher enthalpy (lower stability) than

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Question ID VK-064106