👉 Thermodynamically, a chemical reaction is defined as occurring when energy is transferred from one substance to another. This transfer of energy occurs through various processes such as combustion, heat exchange, and nuclear fission. The terms "thermodynamic" and "chemical" are used interchangeably in the context of thermodynamics, although they can be used independently. Thermodynamically, a reaction is defined as an irreversible process that involves the movement of chemical energy from one substance to another. This process