The Student Room Group

Activation Energy

In my chemistry revision guide (when talking about activation energy and exo and endothermic reactions) it says:

"If the energy input is less than the activation energy there won't be enough energy to start the reaction - so nothing will happen"

But, if you look at the graph for an endothermic reaction we see that the energy input is less than the activation energy yet the reaction continues...why? Or am I just reading the graph wrong?

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