Rate Constants and Temperature (OCR A-Level Chemistry A): Flashcards

$k$ increases exponentially

Approx. doubles $k$ and reaction rate

Exponential, not linear

Boltzmann distribution shifts; more particles exceed $E_a$

$k = A \cdot e^{-E_a/RT}$

$8.314$ J mol⁻¹ K⁻¹

Kelvin (K)

$\ln k = -\frac{E_a}{R} \times \frac{1}{T} + \ln A$

$-\frac{E_a}{R}$ (negative)

$E_a = -\text{gradient} \times R$