In the equilibrium $$H_2 + I_2 \rightleftharpoons 2HI$$, if at a given temperature the concentrations of the reactants are increased, the value of the equilibrium constant, $$K_c$$, will:
cannot be predicted with certainly
The correct option is C remain the same
Equilibrium constant doesn't depend on the molar concentration of reactants. It is only affected by the change in temperature. So, the equilibrium constant will remain the same.