Answer:
Forward reaction is endothermic
Step-by-step explanation:
When Kc is larger, it means there is more forward reaction.
Since the Kc increases as the energy increases, this means that energy is a reactant and not a product.
(As you add more energy into the reaction, more product is produced. If energy was a product, Kc will decrease as you add energy.)
Therefore, this tells us that the enthalpy change is positive, and therefore the reaction is endothermic and takes in energy,