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What is the enthalpy of a reaction, if the standard heat of formation of a compound is 15 J, sensible heat of the compound is 25 J, and latent heat of the compound is 10 J?

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What is the enthalpy of a reaction, if the standard heat of formation of a compound is 15 J, sensible heat of the compound is 25 J, and latent heat of the compound is 10 J?

(a) 25 J

(b) 40 J

(c) 50 J

(d) 65 J

I have been asked this question by my college professor while I was bunking the class.

Asked question is from Merging Heat of Formation with Sensible Heat of Compound in portion 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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Correct answer is (c) 50 J

To explain I would say: Enthalpy of reaction = 15 + 25 + 10 = 50 J.

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