Where does the equilibrium shift if there is an increase in reactants?

When there is an increase in the concentration of reactants in a system at equilibrium, the Le Chatelier's principle comes into play. This principle states that if a dynamic equilibrium is disturbed by changing the conditions, the position of equilibrium shifts in a direction that counteracts the change.

In this scenario, adding more reactants provides additional starting materials for the reaction. To reduce the concentration of the added reactants, the system responds by shifting the equilibrium to the right. This shift promotes the production of products from the reactants, effectively decreasing the concentration of the increased reactants and leading to an increase in the concentration of products.

This behavior illustrates how chemical systems adjust to maintain equilibrium when subjected to changes, such as variations in concentration, temperature, or pressure.