General Form
The general form of the Eyring–Polanyi equation somewhat resembles the Arrhenius equation:
where ΔG‡ is the Gibbs energy of activation, kB is Boltzmann's constant, and h is Planck's constant.
It can be rewritten as:
To find the linear form of the Eyring-Polanyi equation:
where:
- = reaction rate constant
- = absolute temperature
- = enthalpy of activation
- = gas constant
- = Boltzmann constant
- = Planck's constant
- = entropy of activation
A certain chemical reaction is performed at different temperatures and the reaction rate is determined. The plot of versus gives a straight line with slope from which the enthalpy of activation can be derived and with intercept from which the entropy of activation is derived.
Read more about this topic: Eyring Equation
Famous quotes related to general form:
“‘A thing is called by a certain name because it instantiates a certain universal’ is obviously circular when particularized, but it looks imposing when left in this general form. And it looks imposing in this general form largely because of the inveterate philosophical habit of treating the shadows cast by words and sentences as if they were separately identifiable. Universals, like facts and propositions, are such shadows.”
—David Pears (b. 1921)