The Reactions node adds rate expression terms to the species transport equations in order to account for consumption or production of species due to reactions.
Add a reaction rate expression, Rs,cs1,cs2...(SI unit: mol/(m
2·s)), for each surface species taking part in a surface reaction.
Add a reaction rate expression, Rb,cb1,cb2...(SI unit: mol/(m
2·s)), for each bulk species taking part in a surface reaction.