A reaction is second order with respect to a reactant. How is the rate of reaction affected if the concentration of the reactant is: doubled

A reaction is second order with respect to a reactant. How is the rate of reaction affected if the concentration of the reactant is: reduced to half ?

A reaction is of second order with respect to a reactant. How is its rate affected if the concentration of the reactant is doubled?

A reaction is of first order in reactant A and of second order in reactant B. How is rate of reaction affected when (a) Concentration of B alone is increased to three times. (b) The concentration of A as well as B is doubled.

A reaction is second order in A and first order in B. How is the rate affected when the concentrations of both A and B are doubled ?

Why rate of reaction increases when the concentration of reactant molecules is increased ?

How does the nature of a reactant affect the rate of a chemical reaction?

Show graphically the order of reaction with change in concentration of reactant.