The second law of thermodynamics basically says that no energy transfer from one form to another is 100% efficient (often, the additional energy is lost as heat).
The second law of thermodynamics basically says that no energy transfer from one form to another is 100% efficient (often, the additional energy is lost as heat).
由于总有一部分能量散发为不能再利用的热能,能量从一种形态转变为另一种形态的效率,总不可能是百分之百.