[esterbunny]

Hey guys  ,
I was wondering if I can find the values for enthalpy for reactions somewhere on the internet (I've looked without much luck).

Mg -- > Mg²⁺ + 2e^-

and

Cu²⁺ + 2e^- -- > Cu

Combined:

Mg + Cu²⁺ -- > Mg²⁺ + Cu

Any help would be greatly appreciated

[Astrokel]

Hey ester bunny!

isn't that ionization energies? or you do not have access to the values, like in data booklet?

[esterbunny]

Hey ester bunny!

isn't that ionization energies? or you do not have access to the values, like in data booklet?

What I really need to find out is whether this reaction is endo - or exo - thermic But i was hoping to learn how to do this for future reference.

[Astrokel]

hey esterbunny,

do you know that it is a single displacement reaction? Check this out, maybe it helps http://antoine.frostburg.edu/chem/senese/101/thermo/faq/why-are-metal-displacements-exothermic.shtml

You can try to draw up an energy cycle and see for yourself.