The standard Gibbs free energy of formation of a compound is the change of Gibbs free energy that accompanies the formation of 1 mole of that substance from its component elements, at their standard states (the most stable form of the element at 25 degrees Celsius and 100 kilopascals).
Assuming you mean How much of the water on Earth is fresh water, about 5% of the water on the Earth is fresh water, as opposed to about 95% salt water. To anser your questioâ¦n directly though, 100% of the fresh water we know about is on Earth.
The Earthâs surface is 71% water. But, just how much is drinkable and how drinkable is it? Photo: Clark Anderson NATURAL WATER Only 3% of the earthâs water is fresh, non-saline water. Of that non-saline water, 31% is accessible as fresh water. For every gallon of fresh surface water, there are 30 gallons that lie ...