Second law

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The first law: "energy of the world is constant", and second law: "entropy of the world tends to a maximum", engraved on a steel plate, showing the name Rudolf Clausius, who stated these two laws in 1865, on the Clausius Memorial Stone, Technical University of Koszalin, Poland.[1]

In science, second law (TR:502) can refer either to the second law of motion (Newton, 1686) or the second law of thermodynamics (Clausius, 1865).


In physics, second law of motion states that a change in motion is proportional to the motive force impressed and takes place along the straight line in which that force is impressed.[2]


In thermodynamics, second law of thermodynamics states that the entropy of the universe tends to a maximum.[3]


  1. Clausius memorial stone (photo) – Wikipedia.
  2. Second law of motion – Hmolpedia 2020.
  3. Second law of thermodynamics – Hmolpedia 2020.

External links

Theta Delta ics T2.jpg