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JEE Main Chemistry question

ChemistryThermodynamicsJEE Main

If at 298 K the bond energies of C-H, C-C, C=C and H-H bonds are respectively 414, 347, 615 and 435 , the value of enthalpy change for the reaction, at 298 K will be

Answer: (D)

Solution

$Δ H = [4 BE(C{-}H)+BE(C{=}C)+BE(H{-}H)] - [6 BE(C{-}H)+BE(C{-}C)] =

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Question ID VK-134822