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MHT CET Chemistry question

ChemistryThermodynamicsMHT CET

Heat of formation of is kJ/mol and is kJ/mol. The enthalpy change for the reaction,

Answer: (A)

Solution

Using the given data, H_f(Missing close brace\mathrm{H_2OExtra close brace or missing open brace}) - 2Δ H_f(Missing close brace\mathrm{H_2O_2$}) = 2(-188) - 2(-286) = -376 + 572

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Question ID VK-064767