Chemistry · Unit 9 · Chapter 9.1

Energy Diagram Builder

How to use: Slide the three energy sliders. Watch Eₐ, ΔH and the exothermic or endothermic label change. Turn on the catalyst to lower the peak.

Reactants energy: 100 kJ Peak energy: 160 kJ Products energy: 60 kJ Add a catalyst (lowers the peak by 30 kJ)

Activation energy Eₐ =

ΔH = products − reactants =

Illustrative data. This simulation is a simple model for learning, not a real lab measurement.