The opposite of °endothermic; describes an °exoergic transformation in which energy is released as °heat Exoergic °reactions in solution are commonly exothermic
reacting systems which release heat into the surroundings Heat "exits" from the system, so DH is negative The opposite of endothermic On this potential energy graph, DH is represented by the vertical distance from reactants to products This is a decrease in energy of the system, so the forward reaction is exothermic Exothermic reactions have a negative DH