[Dale27190]

I've completed my coursework studying the rate orders of the reaction between iodide ions and peroxydisulphate ions and have worked out that both reactants are first order.

The coursework is fully complete including a section on temperature, Arrhenius etc. however, I have been told that to validate the Ea (activation enthalpy) I have found I need to find a standard value for comparison.

Does anyone know of any books or websites where this information can be found - or if any knows the value would they mind sharing it and how they know it.

The value I have obtained is 48.06 kJ/mol - Any opinions!

Thanks