The opposite of an exothermic process is an endothermic process, one that absorbs energy, usually in the form of heat. The concept is frequently applied in the physical sciences to chemical reactions where chemical bond energy is converted to thermal energy (heat).
The opposite of an exothermic process is an endothermic process, one that absorbs energy usually in the form of heat The concept is frequently applied in the physical sciences to chemical reactions where chemical bond energy is converted to thermal energy (heat).