Question

What is the value of P in the following process?

(a) 5 mole

(b) 10 mole

(c) 15 mole

(d) 20 mole

I had been asked this question in my homework.

My query is from Material Balances Problems Involving Multiple Units in section The Chemical Reaction Equation & Stoichometry, Material Balances for Processes Involving Reaction and Multiple Units of Basic Chemical Engineering

Answer 1

Right answer is (c) 15 mole

The best I can explain: 10 + 20 = P + 10 + 5, => P = 15 mole.