What is said about Entropy
Entropy is the tendency of energy to spread itself out. So maximum entropy is when the temperature of everything is the same, no concentrations of heat.
The Units of entropy are Joules. The Entropy of a system is the (free) energy of a system. What is free energy? Heat is free energy. What else is free energy is something you will get a lot of different answers on.
The units of entropy are also the same as Specific Heat. The Joules per degree per unit mass. So Entropy of a system is all the energy for all the degrees in the system for all the unit masses in the system added up. |
Does it add up?
If entropy of a system is the heat energy in a system, then the measure of entropy is heat evenly spread out is the SAME as the measure of entropy of a system with all the heat in one spot and everything else being really cold. So the units of Entropy don't agree with the description of what Entropy is supposed to be.
Case in Point, one statement of the second law is Entropy of a closed system cannot decrease.
So the Entropy of a closed system with only Heat Energy is the Heat Energy.
See next page. |
