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.
10 to 20 percent of the earths fresh water is in Lake Baikal, Russia and another 10 to 15 percent in the US Canadian Great Lakes. Most of the Earth's supply of available fresh water is found in underground rock formations called acquifers. http://www.infoplease.com/ipa/A0004674.h...