Arrhenius Equation (Ea)Chemistry
Arrhenius Equation & Activation Energy (Ea) Rate Calculator
Calculate temperature-dependent reaction rate constants (k2), acceleration multipliers, and thermal activation barriers using the two-point Arrhenius kinetic model.
Calculated Result
Target Rate Constant (k2)
0-
Calculator Inputs
-
Quick select:
Quick select:
kJ/mol
Quick select:
Quick select:
Target Rate Constant (k2)
0-
Reaction Acceleration Multiplier
0 x faster
Kinetic Rate Constant Acceleration Profile
Initial k1
0 -(100%)
Target k2
0 -(0%)
Standard chemical kinetics tool for temperature dependency and transition state activation energy modeling.
Calculation Methodology
Two-Point Arrhenius Equation: ln(k2 / k1) = (Ea / R) * [ (1 / T1) - (1 / T2) ]. Rearranged: k2 = k1 * exp( (Ea / R) * [ (T2 - T1) / (T1 * T2) ] ). Gas constant R = 8.314 J/(mol K); T in Kelvin.
Frequently Asked Questions
Because higher temperatures exponentially expand the high-energy fraction of the Maxwell-Boltzmann distribution that surpasses the required activation energy threshold (Ea).
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