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MHT CET 2022 Chemistry question

ChemistryThermodynamicsMHT CET 2022

The enthalpies of combustion of C (graphite) and C (diamond) are –393.8 and –395.3 kJ respectively. The enthalpy of conversion of C (graphite) to C (diamond) is

Answer: (D)

Solution

Use Hess's law. C(graphite) , kJ; C(diamond) , kJ. Reverse the second and add: C(graphite) C(diamond), H_1$-Δ

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Question ID VK-094410