Question

In a steady-state reactive system, 2 molar NaCl and 1 molar H2CO3 are supplied to the system both at the rate of 100 mole/min, then how much Na2CO3 produced?

(a) 1 molar

(b) 2 molar

(c) 3 molar

(d) 4 molar

This question was addressed to me in an internship interview.

Asked question is from Accounting for Chemical Reactions in Material Balances in division Introduction to Material Balances of Basic Chemical Engineering

Answer 1

The correct choice is (a) 1 molar

For explanation I would say: The balanced reaction of the system is 2NaCl + H2CO3 -> Na2CO3 + 2HCl, => amount of Na2CO3 = 1 molar.