which of the following is a characteristic of an exothermic chemical reaction?

the energy of the reactants is lower than the energy of the products.
the amount of energy released is equal to the activation energy.
the overall enthalpy of the system increases during the change.
energy is released into the surroundings during this change.

The correct answer is The overall enthalpy of the system increases during the change.

Explanation:

Exothermic is type of chemical reaction that deals with the generation of energy in form of heat.Exothermic reactions are thermodynamically favorable because free energy change during exothermic reaction is highly negative.

     Enthalpy is a state function which measures the heat content of the system.As there is a generation of heat from the reaction to the system in which the reaction is taking place,the heat content of the system increases which ultimately result in increasing the overall change of the enthalpy.

explanation:

i think option no d is the correct answer