Equation 2nd law thermodynamics

AI Thread Summary
The second law of thermodynamics does not have a single equation but is fundamentally related to the concept of entropy. It states that entropy in a closed system will always increase over time. A mathematical representation for an isolated system is given by the inequality dS/dt ≥ 0, where S represents entropy and t is time. This highlights that the change in entropy is non-decreasing. Understanding this principle is essential for grasping the implications of thermodynamic processes.
MaoIragorri
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Can anyone give me the equation for the second law of thermodynamics...
Please.
Thanks
 
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There is no straight equation for 'the second law of thermo'.

There is an equation for entropy (there are acutally quite a few eq for entropy).
The second law tells you that entropy will always increase in a closed system.

Is there any specific question you have concerning the 2nd law, as what you asked could have been very easily found using google.
 
Last edited:
Wiki says:

In terms of time variation, the mathematical statement of the second law for an isolated system undergoing an arbitrary transformation is:

\frac{dS}{dt} \ge 0

where

S is the entropy and
t is time.

This, I guess, is an equivalence, not an equation.
Also, note that this is for an isolated system.
 
Cheers Pythagorean... lovely xxChrisxx.
 

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