Creating an Arrhenius plot to find Ea

This video shows you how to do an Arrhenius plot from temperature and rate data and how to find Ea.
Ea = activation energy, in J/mol (or kJ/mol if you want to convert it into this)
A = pre-exponential factor (frequency factor). For units, see notes at bottom.
Ea is the minimum amount of energy needed for a reaction to occur.
A is the frequency of collisions between particles, in a reaction. It is the fraction of molecules that would react if there were no energy barrier, ie if activation energy were zero.
A large A value = more frequent collisions, the reaction happens more easily.
A large Ea value (steeper gradient) = a higher energy barrier, the reaction does not happen easily
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Note - units of A can differ depending on the order of reaction. This is quite complex and above and beyond what you need for A Level. Units of A are often given as s-1 for simplicity.
A is temperature-dependent, however if a narrow temperature range is chosen, we can assume that A is constant for two reactions at different temperatures.
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