CHEMISTRY / CHEMICAL KINETICS
Estimate activation energy from two rate constants measured at two temperatures. Inspect the equation, substituted values, assumptions, and result in one guided chemistry workspace.
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Estimate activation energy from two rate constants measured at two temperatures. The page evaluates the displayed equation from your supplied values and presents both symbolic and substituted KaTeX working so the arithmetic can be checked.
E_a=R ln(k2/k1)/(1/T1-1/T2)
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What you receive
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One Arrhenius mechanism and pre-exponential factor apply across both temperatures.
Use internally consistent units and retain extra precision when carrying the result into another calculation.
Reviewed reference factors