Energy cannot be created or destroyed by ordinary physical or chemical process. This concept is called.?

This concept is called the Law of Conservation of Energy.

The concept you are referring to is called the law of conservation of energy.

The concept you are referring to is called the law of conservation of energy. It states that energy cannot be created or destroyed in an isolated system. Instead, it can only be transferred or transformed from one form to another. This principle is a fundamental concept in physics and plays a crucial role in understanding various natural phenomena and energy management. It is often derived from the first law of thermodynamics, which states that the total energy of a closed system remains constant.