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MHT CET Chemistry question

ChemistryThermodynamicsMHT CET

If , , and denote the enthalpies of formation of X, Y, R and S respectively, the enthalpy of reaction; is given by

Answer: (D)

Solution

\sum\sum$ Δ_f H(reactants) = Δ_f H(R) + Δ_f H(S) -

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Question ID VK-064373