Collision theory states that the rate of a reaction depends on the number of collisions between molecules or ions, the average energy of the collisions, and their effectiveness. Does the general effect of concentration on reaction rate support the collision theory?

According to the collision theory the rate of chemical reaction directly proportional to number of reaction between the reactant molecules. More the number of collision between the reactant molecules, more would be the changes of reaction to occur that reactant converting into product.

Moreover, with an increase in concentration of reactant molecules, the chances of collision between the molecules increase and hence the rate of reaction also increase. Thus, we can say higher the concentration higher will be the rate of reaction.