Respuesta :
According to the Second law of thermodynamics, energy is never 100% efficient because some of the energy disperses as heat
Answer:
Second; entropy in an isolated system is always increasing.
Explanation:
- Entropy is the measure of energy that cannot do work.
- Energy cannot be 100% efficient because when energy is converted from one form to the other eg: mechanical energy to heat some of the energy is 'converted' to entropy which cannot be used in the system.
- Some energy will be lost in the form of entropy
