Question

The general material balance equation for reactive system is Accumulation = Input + Generation – x, what is x?

(a) Consumption – Output

(b) Consumption + Output

(c) Output – Consumption

(d) None of the mentioned

The question was posed to me in class test.

My doubt is from Accounting for Chemical Reactions in Material Balances in chapter Introduction to Material Balances of Basic Chemical Engineering

Answer 1

The correct choice is (b) Consumption + Output

For explanation I would say: Accumulation = Input – Output + Generation – Consumption, => x = Consumption + Output.