The reaction rate constants at two different temperatures T1 and T2 are related by _________________?
Correct answer: B. ln (k2/k1) = (E/R) (1/T1 - 1/T2)
- A. ln (k2/k1) = (E/R) (1/T2 - 1/T1)
- B. ln (k2/k1) = (E/R) (1/T1 - 1/T2)
- C. exp (k2/k1) = (E/R) (1/T2 - 1/T1)
- D. exp (k2/k1) = (E/R) (1/T1 - 1/T2)
Explanation
Integrating the Arrhenius equation between two temperatures gives ln(k2/k1) = (E/R)(1/T1 − 1/T2). Since a higher temperature has a larger rate constant, this expression also gives the expected positive value for k2 > k1 when T2 > T1.
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