What determines the second law of thermodynamics?

The laws of thermodynamics describe the relationship between thermal energy or heat and other forms of energy, and how energy affects matter. The first law of thermodynamics says that energy cannot be created or destroyed; the amount of energy in general in the universe remains unchanged. The second law of thermodynamics deals with the quality of energy. It says that as energy is transferred or converted, more and more is lost. The second law also states that there is a tendency for any isolated system to become a more disordered state.