Question
Chemistry Question on Chemical Kinetics
The rate at which a substance reacts depends on its
A
atomic weight
B
atomic number
C
molecular weight
D
active mass
Answer
active mass
Explanation
Solution
According to law of mass action, at a given temperature, the rate of reaction at a particular instant is proportional to the product of active masses of the reactants at that instant raised to powers which are numerically equal to the numbers of their respective molecules.