How to pronounce “activation energy” in English

And then secondly, there's activation energy to any kind of a collaborative effort, which if you don't cross you have a lot of difficulty making

But often, that initial hump, that initial activation energy, that inertia, is the thing that blocks us from getting started on a task.

Once a tiny bit of Form II appeared, it acted as a nucleation site, lowering that massive activation energy and causing all the Form I to crystallize into Form II.