Comment by dekken_

Comment by dekken_ 10 hours ago

3 replies

I believe you are correct.

Entropy is not a physical quantity, it is a measure of how far a system is from equilibrium.

Lots of people talk about order/disorder or macro and micro states, not realizing these are things we've invented and aren't physical in nature.

kgwgk 8 hours ago

> Entropy is not a physical quantity, it is a measure of how far a system is from equilibrium.

That’s funny because the original thermodynamic entropy is defined only for systems in equilibrium.

  • dekken_ 4 hours ago

    from who? Clausius?

    It doesn't make a lot of sense to me because a system at equilibrium, cannot go undergo any further diffusion, so there's no potential "entropy increase"

    Maybe the issue, is that, like an ideal gas, a perfect equilibrium just doesn't occur.

  • [removed] 6 hours ago
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