Wuwei
Gold Member
- Apr 18, 2015
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The second law is very general. Consider a cold object and a warm object. The entropy of the system will be given by some value S0. After a while the warm object will be colder and the cold object will be warmer. The entropy is a larger value S1. There is no place in the entropy representation that says the two objects cannot have a two way exchange of energy, with, of course, the end result that more energy went from the warmer to the colder object.That's right!the second law is all about entropy...energy rolling down hill...always becoming less organized....energy moving from the warm surface of the earth to the cooler atmosphere is and example of entropy...and in addition, it is a natural process...and all natural processes are irreversible
That's not right!.no back radiation ever.
Where in the law of entropy does it say that? Nowhere. As long as the colder object received more energy than it emits, the entropy law is satisfied. Anyone can understand that.
the second law says no such thing...you say that..and your references say that...but the second law doesn't say that...an unobservable, unmeasurable, untestable mathematical model says that...but not the second law...