View source for Sabatier reaction

The [[w:Sabatier_reaction|Sabatier reaction]] can be used to create methane from CO2 and H2 to be used as fuel for spaceships.

The hydrogen is combined with atmospheric CO2 to create [[methane]] and water. The chemical reaction is the following:

: CO<sub>2</sub> + 4H<sub>2</sub> → CH<sub>4</sub> + 2H<sub>2</sub>O -165 kJ/mol

The [[Sabatier/Water Electrolysis Process|Sabatier process]] would probably require electrolysis as a source of Hydrogen on Mars.