What is the heat of reaction for 2H2 + O2 -> 2H2O, if heat of formation of H2, O2, and H2O are 2 J, 5 J, and 10 J respectively?
(a) 2 J
(b) 5 J
(c) 8 J
(d) 11 J
I had been asked this question during a job interview.
My doubt stems from Heat (Enthalpy) of Reaction 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