Chemical Kinetics
Collision cross-section is a measure of the likelihood of a collision between two particles, often represented as an effective area that quantifies how likely it is for a reaction to occur during collisions. This concept plays a critical role in gas-phase reaction kinetics, as it helps to determine reaction rates based on the frequency and energy of particle collisions. A larger cross-section indicates a higher probability of collisions leading to a reaction, while a smaller one suggests the opposite.
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