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MHT CET 2023 Chemistry question

ChemistryThermodynamicsMHT CET 2023

Calculate H for following reaction, at 25C. NHCN + O N + CO + HO() (U = -740.5 kJ, R = 8.314 J K mol)

Answer: (C)

Solution

. Gaseous moles: reactants ; products (water is liquid). So . At K: kJ. Therefore $Δ

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Question ID VK-098330