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Two feeds, 10 moles with H = 10 J/mole and 5 with H = 25 J/mole, what is the enthalpy of products?

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Two feeds, 10 moles with H = 10 J/mole and 5 with H = 25 J/mole, what is the enthalpy of products?

(a) 5 J/mole

(b) 10 J/mole

(c) 15 J/mole

(d) 20 J/mole

The question was posed to me in an online quiz.

My enquiry is from Solving Energy Balance Problems 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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Best answer
The correct choice is (c) 15 J/mole

Best explanation: Energy balance: 10*10 + 5*25 = 15*H, => H = 15 J/mole.

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