Rate constant
Rate constant
Formula
k = Ae^(−Eₐ/RT)
Real World
Food manufacturers refrigerate products knowing that lowering temperature by 10°C roughly halves k, slowing bacterial enzyme reactions and doubling shelf life — a direct application of rate constant temperature dependence.
Exam Focus
Derive units of k from the rate equation by substitution; a wrong unit loses the mark even if the numerical value is correct.
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