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What is the enthalpy of a reaction, if the standard heat of formation of a compound is 15 J and sensible heat of the compound is 25 J?

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What is the enthalpy of a reaction, if the standard heat of formation of a compound is 15 J and sensible heat of the compound is 25 J?

(a) 15 J

(b) 25 J

(c) 40 J

(d) 50 J

I got this question in class test.

Question is taken from Merging Heat of Formation with Sensible Heat of Compound in division Application of Energy Balances in the Absence of Chemical Reactions and Energy Balances: How to Account for Chemical Reaction of Basic Chemical Engineering

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The correct answer is (c) 40 J

To elaborate: Enthalpy of reaction = 15 + 25 = 40 J.

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