2nd law of thermodynamics

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2nd law of thermodynamics

Post by sarahjay8 » Thu Sep 28, 2006 2:55 am

I was wondering you thoughts...
Does the formation of highly ordered biological structures violate the 2nd law of thermodynamics? Why not?

I would say no because we refer the total entropy change as the entropy change of the universe, not individual ordered biological stuctures. It also depends on what is the system and what is the universe. For example a reaction happening in the arm is going to increase entropy in the muscles, but a reaction happening in a test tube is not neccessarily going to increase the randomness of an arm becauase that isnt really included in the system.

What do you think? Iam I on the right track?

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Post by Ultrashogun » Thu Sep 28, 2006 12:21 pm

They do not violate the second law because a living structure raises the entropy of the isolated system, the universe.

Life is only a local minimum of entropy.

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Post by fluktuacia » Mon Oct 02, 2006 2:36 pm

it's because biological structures are not closed systems..

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