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What is the enthalpy of the reaction from 10^oC to 25^oC if CP = 2 J/^oC, and the reference enthalpy is 20 J?

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What is the enthalpy of the reaction from 10^oC to 25^oC if CP = 2 J/^oC, and the reference enthalpy is 20 J?

(a) 50 J

(b) 60 J

(c) 75 J

(d) 90 J

The question was posed to me in semester exam.

I'm obligated to ask this question of 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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Best answer
Correct option is (a) 50 J

The best explanation: Enthalpy of reaction = 20 + 10∫^252.dT = 20 + 15*2 = 50 J.

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