* Water is a compound, not a mixture: Water (H₂O) is formed by the chemical bonding of two hydrogen atoms and one oxygen atom. It's not a simple mixture where components can be easily separated by temperature changes.
* Breaking bonds requires energy: To separate the hydrogen from the oxygen in water, you need to break the chemical bonds holding them together. This requires a significant input of energy, usually in the form of heat or electricity.
* Electrolysis: The most common way to separate hydrogen from water is through electrolysis. In this process, an electric current is passed through water, causing the water molecules to split into hydrogen and oxygen gas.
So, there isn't a specific temperature where hydrogen "separates" from water. Instead, it requires an energy input (like electrolysis) to break the bonds and release hydrogen gas.
