Multiple choice

Arrhenius equation is

  1. K = Ae-1/RT

  2. K = e-RT/Ea

  3. K = A e-Ea/RT

  4. K = A eEa/RT
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Arrhenius equation K = A e^(-Ea/RT) correctly relates the rate constant K to temperature T, where A is the pre-exponential factor, Ea is activation energy, and R is the gas constant. Option A has incorrect exponent form, B lacks the pre-exponential factor, and D has positive exponent instead of negative.

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