How does concentration and catalysts affect the rate of reaction?
increasing the concentration increases the probability of collision of the reactants. Thereby increasing the rate of reaction. This is evident in the formula Rate = k[Concentration]^n, where k is a rate constant and n is the degree order. On the other hand, the catalyst makes it easy for the reactants to collide in the proper orientation and it also decreases the energy of activation needed for the reaction to occur.
