Chemistry
Collision Theory and Reaction Rates
Quick fact
Only about 1 in a million molecular collisions actually result in a chemical reaction.
Why this is interesting
Have you ever wondered why some reactions happen instantly while others take hours? It all starts with how molecules collide.
Read the full explanation
Understanding Collision Theory and Reaction Rates
In a chemical reaction, particles must bump into each other with enough energy and the right orientation. Not every collision works—it's like trying to assemble a puzzle without knowing where the pieces fit.
A deeper explanation
Collision theory states that reactions occur when reactant molecules collide with sufficient energy (activation energy) and proper orientation. The rate of reaction depends on how often these 'effective collisions' happen, influenced by factors like temperature, concentration, and catalysts.