Endothermic reactions are reactions that require external energy, usually in the form of heat, for the reaction to proceed. Since endothermic reactions draw in heat from their surroundings, they tend to cause their environments to cool down.
2. Endothermic:
Endothermic is a process in which it gain heat usually absorbs thermal
energy from its surroundings, which is heat transfer into the system.
Exothermic:
Exothermic Reactions. Exothermic reactions are reactions or processes that
release energy, usually in the form of heat or light. In an exothermic reaction,
energy is released because the total energy of the products is less than the total
energy of the reactants.