For 10 points, name this law which states that the entropy of the universe is always increasing.
This law can be applied to determine the degree of completion of chemical reactions, and one statement of this law, which breaks time reversal symmetry, is known as Boltzmann's H-theorem. Another formulation of this law states that heat cannot convert energy completely into work. A thought experiment proposed to violate this law allowed one side of a chamber to heat up quickly, and Clausius is credited with the first formulation of this law, which is violated by Maxwell's demon. For 10 points, name this law which states that the entropy of the universe is always increasing.
This law can be applied to determine the degree of completion of chemical reactions, and one statement of this law, which breaks time reversal symmetry, is known as Boltzmann's H-theorem.
Second Law of Thermodynamics