Answer:
less
Explanation:
Chemical equation:
A + B + C → D = Heat
A chemical reaction in which heat is released is exothermic reaction. The reaction is exothermic when the energy of product is less than energy of reactant.
Exothermic reaction:
The type of reactions in which energy is released are called exothermic reactions.
In this type of reaction energy needed to break the bonds are less than the energy released during the bond formation.
For example:
Chemical equation:
C + O₂ → CO₂
ΔH = -393 Kj/mol
it can be written as,
C + O₂ → CO₂ + 393 Kj/mol
