For a reversible exothermic reaction, what is the effect of increasing temperature on the equilibrium constant

$\left({\mathbf{K}}_{\mathrm{eq}}\right)$ and on the forward rate constant $\left(k_f\right)?$

For a reversible exothermic reaction, when temperature increases, the equilibrium constant $\left({\mathbf{K}}_{\mathrm{eq}}\right)$ decreases as this will shift the equilibrium in the left direction and forward rate constant $\left(k_f\right)$ increases.