Question

Write the Arrhenius equation and define all terms.

Short answer

The Arrhenius equation is given by \(k = Ae^{-Ea/RT}\), where 'k' is the rate constant, 'A' is the pre-exponential factor, 'Ea' is the activation energy, 'R' is the Universal gas constant, and 'T' is the absolute temperature.

Step-by-step solution

Write the Arrhenius Equation

Firstly, write down the Arrhenius equation itself. It is \(k = Ae^{-Ea/RT}\), in which k is the rate constant, A is the pre-exponential factor, Ea is the activation energy, R is the universal gas constant, and T is the temperature.

Define 'k'

'k' denotes the rate constant. It is the proportionality factor in the rate equation that indicates the relationship between the rate of a chemical reaction and the concentrations of reactants.

Define 'A'

'A' stands for the pre-exponential factor, also known as the frequency factor. It basically provides a measure of the frequency of the collisions in the correct orientation.

Define 'Ea'

'Ea' stands for the activation energy measured in J/mol. It is the minimum energy required to initiate a chemical reaction.

Define 'R'

'R' is the universal gas constant. In this equation it is usually given the value of 8.314 J/(mol • K).

Define 'T'

'T' represents the absolute temperature measured in Kelvin.