Activation Energy & Reaction Heat Simulator

Every chemical reaction has to climb an energy hill before it can happen: reactant molecules must collide with at least the activation energy E_a before they can turn into products. This simulator renders that reaction-energy diagram in 3D and streams a swarm of molecules along it — each one is given a random kinetic energy drawn from the same exponential distribution that describes real two-dimensional Maxwell–Boltzmann statistics. Molecules with enough energy crest the barrier and become products; the rest bounce back partway and try again. Turn up the temperature or add a catalyst and watch more of the swarm succeed, exactly as the Arrhenius equation predicts, and flip between an exothermic reaction (products lower in energy, heat flashes out) and an endothermic one (products higher, heat is drawn in) to see how ΔH reshapes only the landing plateau, never the climb.