The first law of thermodynamics is based on the principle of

Step-by-step solution

The first law of thermodynamics states that the heat supplied to a system is equal to the sum of the change in its internal energy and the work done by the system. Mathematically, Q = U + W . This principle implies that energy can neither be created nor destroyed, but only converted from one form to another. Therefore, it is based on the law of conservation of energy.