What happens to the Kc value as the temperature increases in a reaction that produces more reactants?

In a reaction that produces more reactants as temperature increases, the equilibrium constant (Kc) will decrease. This behavior can be understood through Le Chatelier's principle, which predicts how a system at equilibrium reacts to changes in conditions.

For exothermic reactions, increasing the temperature causes the equilibrium to shift towards the reactants to absorb the excess heat, resulting in a lower Kc value, as Kc is defined as the ratio of the concentration of products to reactants. Conversely, for endothermic reactions, raising the temperature tends to shift the equilibrium towards the products, thus increasing Kc.

In this specific scenario, where the reaction shifts towards producing more reactants with an increase in temperature, it indicates that the reaction is exothermic. Therefore, the concentration of reactants increases while the concentration of products decreases, leading to a decrease in the Kc value.