The concentration of reactants directly impacts the rate and yield of catalytic reactions. In [heterogeneous catalysis](https://), the adsorption of reactants on the catalyst surface is a key step, and optimal reactant concentration ensures maximum surface coverage without causing oversaturation. In [homogeneous catalysis](https://), reactant concentration affects the equilibrium and kinetics of the reaction. Continuous monitoring and adjustment of reactant feed are necessary for maintaining desired reaction conditions.
