Chemical Kinetics & Catalysis
6 terms
Temperature Coefficient
Chemical Kinetics & Catalysis
Dimensionless
The factor by which a reaction rate increases for a 10 °C rise in temperature.
Q₁₀ = k(T+10) / k(T)
Termolecular Reaction
Chemical Kinetics & Catalysis
L²/(mol²·s)
An elementary step requiring the simultaneous collision of three species.
rate = k[A][B][C]
Threshold Energy
Chemical Kinetics & Catalysis
kJ/mol
The minimum total energy that colliding molecules must possess for the collision to be capable of reaction.
E_threshold = Ea + E_average
Transition State
Chemical Kinetics & Catalysis
kJ/mol
The highest-energy configuration along the reaction coordinate, at which bonds are partly broken and partly formed.
denoted ‡
Transition State Theory
Chemical Kinetics & Catalysis
Various
The theory that treats the activated complex as being in quasi-equilibrium with reactants and calculates rate from its decomposition frequency.
k = (k_BT/h) e^(−ΔG‡/RT)
Turnover Number
Chemical Kinetics & Catalysis
s⁻¹
The number of substrate molecules converted per catalytic site per unit time.
TON = molecules converted / active sites