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Free Energy and Spontaneity of Systems          Every process that occurs all around us can be divided into two sections: spontaneous and non-spontaneous. There have been many theories to describe the spontaneity of a system and the dependence of the system spontaneity on a certain variable. Such variables are being the change of enthalpy of the system (ΔH), the change of entropy of the system (ΔS) and finally the explanation was given by regarding about the ‘free energy’. Everything in the universe is made out of the inter-conversion of energy and mass. Energies are concentrated in masses. If we observe a chemical reaction we can see that there is some amount of energy trapped as ‘the bond energy’. When we break a bond or make a bond or when the system does work or work is done on the system we can observe the evolution of some energy or loss of some energy regarding these processes. ‘Free energy’ means that the energy is not bound anymore. It’s fre...

Everything that exists is in a relation between mass and energy. It is like an equilibrium exists between energy and mass.  If you observe energy, it's actually some particle with definite masses are at infinite speed. And when you observe mass, it actually when energy is not spread out in infinite space, but it is composed in a point or definite area.  The things are very interesting to think about. Everything is made out of atoms and if you have a proper knowledge about energy and mass then you will be able to explain everything including how everything was created, how atoms were created and why electrons are outside but not composed in a definite point. You can assume things like this: A flow of energy is in front of you. Flowing at infinite speed. It's a wave, energy wave. Now you just grab some amount of the energy with your hand. The energy will continue flowing as usual, but the little part you grabbed in your hand is not energy anymore. It's some amount of mas...