First and Second Laws of Thermodynamics

The keys to

Classical Thermodynamics

are the

First

and

Second laws of Thermodynamics

.

First Law of Thermodynamics :

(also known as the conservaton of energy principle)

Energy can neither be created nor destroyed; it can only change form.

Second Law of Thermodynamics :

Energy in the form of heat only flows spontaneously from regions of higher temperature to regions of lower temperature.

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Ch 1, Lesson A, Page 3 - First and Second Laws of Thermodynamics