Equations · equation
Eyring Equation
Chemical Kinetics · 1935
- Equation
- k = (k_B·T/h)·e^(−ΔG‡/RT)
- Field
- Chemical Kinetics
- Named After
- Henry Eyring
- Year
- 1935
Symbols
k rate constant · k_B Boltzmann constant · h Planck constant · ΔG‡ free energy of the transition state, the fleeting halfway arrangement · R gas constant · T temperature
Significance
Arrhenius's barrier given a physical face: reactions pass through a transition state, and quantum mechanics (there's Planck's h) sets the universal attempt frequency k_BT/h — about six trillion tries per second at room temperature.
Referenced by
constant
element
equation
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