7000+ Metallurgical Kinetics and Energy MCQ Questions Answers - 1

Question: 1

Which of the following is a controlling factor in very fast heterogeneous reaction?

(A) Composition of reactant

(B) Pressure

(C) Temperature

(D) Heat and mass transfer effects

Question: 2

The role of a catalyst in a chemical reaction is to change the

(A) Activation energy

(B) Heat of reaction

(C) Equilibrium constant

(D) Final products

Question: 3

Catalyst is a substance which ____ chemical reaction.

(A) Alters the value of equilibrium constant in a reversible

(B) Can either increase or decrease the speed of a

(C) Increases the speed of a

(D) Decreases the speed of a

Question: 4

When a catalyst increase the rate of forward reaction, the value of rate constant

(A) Increases

(B) Decreases

(C) Becomes infinite

(D) Remains same

Question: 5

The rate of homogenous reaction is a function of

(A) Pressure and composition only

(B) Temperature and pressure only

(C) Temperature and composition only

(D) All temperature, pressure and composition