The second law of thermodynamics states that as energy is transferred or transformed, more and more of it is wasted. It’s one of the four laws of thermodynamics, which describe the relationships between thermal energy, or heat, and other forms of energy, and how energy affects matter. The First Law of Thermodynamics states that energy cannot be created or destroyed; the total quantity of energy in the universe stays the same. The Second Law of Thermodynamics is about the nature of energy. The Second Law also states that there is a natural tendency of any isolated system to degenerate into a more disordered state, according to Boston University.

Saibal Mitra, a professor of physics at Missouri State University, finds the Second Law to be the most interesting of the four laws of thermodynamics. “There are a number of ways to state the Second Law,” Mitra told Live Science. “At a very microscopic level, it simply says that if you have a system that is isolated, any natural process in that system progresses in the direction of increasing disorder, or entropy, of the system.” 


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