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What is the enthalpy of the reaction from 25^oC to 40^oC if CP = 10 J/^oC, and the reference enthalpy is 10 J?

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What is the enthalpy of the reaction from 25^oC to 40^oC if CP = 10 J/^oC, and the reference enthalpy is 10 J?

(a) 80 J

(b) 120 J

(c) 160 J

(d) 200 J

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

This intriguing question comes from Merging Heat of Formation with Sensible Heat of Compound topic 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 choice is (c) 160 J

For explanation: Enthalpy of reaction = 10 + 25∫^4010.dT = 10 + 10*15 = 160 J.

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