Question

Biological systems such as cells, plants, animals are ordered and yet form spontaneously. Does the formation and growth of such systems violate the 2nd law of

thermodynamics?

Answer 1

Ans :

According to the second law of thermodynamics, the entropy of an isolated system always increases and never decreases. Now when we see the highly ordered and complex living organisms , we observe that the entropy of these organisms decrease and violate the law. But this is not true .

In actual , the living organisms are not an isolated system , when they become complex and structured , they increase the entropy of the universe , such that the ultimate entropy of the system increases overall.

So the formation and growth of the living systems do not violate the 2nd law of thermodynamics.