Rate-determining step

Rate-determining step is a term used in Chemistry and Chemical Kinetics to refer to the slowest step in a Chemical Reaction. This step determines the overall rate of the reaction. The concept is used in the Transition State Theory and the Eyring Equation to calculate the rate of a reaction.

Overview

In a chemical reaction, the rate-determining step is the slowest step that determines the overall rate of the reaction. The rate of the reaction is determined by the rate law, which is derived from the rate-determining step. The rate law is an equation that relates the rate of a reaction to the concentrations of the reactants and the rate constant.

Rate Law

The Rate Law is an equation that relates the rate of a reaction to the concentrations of the reactants and the rate constant. The rate law is derived from the rate-determining step. The rate constant is a proportionality constant that is specific to a particular reaction at a particular temperature.

Transition State Theory

The Transition State Theory is a theory that describes the rate of a chemical reaction. The theory states that the rate of a reaction is determined by the energy barrier that must be overcome for the reactants to be transformed into the products. The energy barrier is represented by the transition state, which is the highest energy configuration of the reactants during the reaction.

Eyring Equation

The Eyring Equation is an equation that is used to calculate the rate of a reaction. The equation is derived from the Transition State Theory. The Eyring Equation relates the rate constant of a reaction to the temperature, the activation energy, and the enthalpy and entropy of the transition state.

See Also

• Chemical Kinetics
• Chemical Reaction
• Rate Law
• Transition State Theory
• Eyring Equation

Rate-determining step Resources
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