Activation Energy Diagram Chemistry. This state is also known as an activated complex. It is obvious that the activation energy e a in the arrhenius equation must have the units of energy.
Activation energy diagrams always incorporate the energetics δg or δh of the net reaction but it is important to understand that the latter quantities depend solely on the thermodynamics of the process which are always independent of the reaction pathway. This state is also known as an activated complex. In an energy diagram the reaction progress is plotted on the x axis and the potential energy is plotted on the y axis.
Because the reverse reaction s activation energy is the activation energy of the forward reaction plus δh of the reaction.
Ln k 2 k 1 e a r x 1 t 1 1 t 2 where e a the activation energy of the reaction in j mol r the ideal gas constant 8 3145 j k mol t 1 and t 2 absolute temperatures in kelvin k 1 and k 2 the reaction rate constants at t 1 and t 2. For this reason the activation energy of a reaction is sometimes referred to as the activation energy barrier. It is obvious that the activation energy e a in the arrhenius equation must have the units of energy. In an energy diagram the reaction progress is plotted on the x axis and the potential energy is plotted on the y axis.
