Question

Why does conservation of energy not result in perpetual motion machines?

Answer 1

Step-by-step explanation:

according to the first law of thermodynamics, the energy is always conserved. To keep a machine moving, the energy applied should stay with the machine without any losses. Because of this, first law of thermodynamics states it as impossible to build perpetual motion machines.

Answer 2

The first law of thermodynamics is the law of conservation of energy. It states that energy is always conserved. ... To keep a machine moving, the energy applied should stay with the machine without any losses. Because of this fact alone, it is impossible to build perpetual motion machines.