Question

The equation of material balance, (Final condition + Sum of outputs) is equal to which of the following?

(a) Initial condition – Sum of inputs

(b) Initial condition + Sum of inputs

(c) Sum of inputs – Initial condition

(d) None of the mentioned

I have been asked this question during an interview.

This question is from Material Balance Concept topic in division Introduction to Material Balances of Basic Chemical Engineering

Answer 1

Right option is (b) Initial condition + Sum of inputs

The explanation: Equation of material balance is Final condition – Initial condition = Sum of inputs – Sum of outputs, => Final condition + Sum of outputs = Initial condition + Sum of inputs.