Question

The reaction rate constant may be defined as the rate of the reaction when the concentration of each reactants is ___________

(a) Zero

(b) Unity

(c) Doubled the initial concentration

(d) Infinite

The question was asked during an interview.

My question is from Order of a Reaction in division Reaction Dynamics of Engineering Chemistry I

Answer 1

Correct answer is (b) Unity

To explain: The reaction rate constant may be defined as the rate of the reaction when the concentration of each reactants is unity. A reaction rate constant or reaction rate coefficient, k, quantifies the rate of a chemical reaction.