FACTORS AFFECTING THE RATE OF REACTION

1. Total surface area of reactants (solids)
2. Concentration of reactants (solutions)
3. Pressure of reactants (gases)
4. Temperature of reactants
5. Presence of catalyst

Question
Which of the following factors affect the rate of reaction?
I  Size of the solid reactant
II Volume of the reactant
III Concentration of the reactant
IV Temperature of the reactant