[quote=The_J]
Enthalpy is the energy contained in a substance. It is essentially chemical potential energy. When something loses enthalpy, it releases it as heat, in an exothermic reaction. When something gains enthalpy, it takes in heat, in an endothermic reaction.Something like burning is exothermic, and I can't think of an endo ones right now.When you make a chemical bond, that releases energy (I know, weird), so it's at a lower enthalpy state. When you destroy a chemical bond, that takes in energy, so it's at a higher enthalpy state.I believe that the way Nimda refers to enthalpy is done with some heavy artistic license, because if it was literal, it would mean increasing enthalpy just makes something more likely to react (kinda) and decreasing slows a reaction (kinda).Perhaps an explanation from Nimda is in order?
[/quote]

This is like what I was thinking: Accelerator is increasing the heat in order to allow the bonds to happen; as far as I know that's part of the requirement for bonding. If enthalpy is chemical potential energy like chemical bonds, then all that together means that Accelerator changing the enthalpy levels doesn't seem like it would have anything to do with Ma'at changing the heat levels so she can make the bonds herself.

EDIT: Quick disclaimer: I haven't gotten to the chemistry bit in my textbook, so I don't know very much about bonds and bonding.