Collision theory simulation
Particles of A and B move and collide; only collisions with enough energy react. Change the conditions and watch the rate change.
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Questions students ask
Why does increasing temperature increase the rate?
Particles move faster, so they collide more often, and a much larger share of collisions have at least the activation energy.
How does a catalyst work?
It provides an alternative reaction pathway with a lower activation energy, so more collisions are successful. It is not used up.
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