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karthik2007 (3375)

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Olaaa!! Perrrfect answer. 593  [798 rates]

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4) is easy. Use the fact that BE(reactants) - BE(products) = Enthalpy change.

Moreover, remember that:

Combustion is the reaction where adequate amount of oxygen reacts with one mole of the substance to give the required product. Try solving it using these hints. Else I'll solve it for you

Will nip in at times to solve problems :)
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