By: Tapan Shah. Second Law 1824: Origin of second law can be traced back to a French physicist, Sadi...
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Transcript of By: Tapan Shah. Second Law 1824: Origin of second law can be traced back to a French physicist, Sadi...
By: Tapan Shah
Second Law
1824: Origin of second law can be traced back to a French physicist, Sadi Carnot.
Originally formulated as a statement about the efficiency of heat engines.
Nicolas Léonard Sadi Carnot
Second Law
The entropy of a system which is not in equilibrium will tend to increase overtime approaching a maximum value of equilibrium.
Entropy of a closed system is always positive.
Heat Death
Hermann von Helmholtz (1856): “The universe is dying.”
Heat Death
Universe reaches a state of maximum entropy.
Final state of the universe Universe will approach
absolute zero Will take approximately
100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 Years. (10102)