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Gauche isomerism is a type of stereoisomerism in which two functional groups are attached to a carbon atom in a molecule and are separated by an angle of approximately 60 degrees. This angle causes the functional groups to be in close proximity to each other, resulting in steric hindrance and potential energy differences.
Gauche isomerism can significantly affect the stability of a molecule due to the steric hindrance caused by the close proximity of functional groups. This can lead to increased potential energy and a less stable conformation compared to other isomers.
The Arrhenius equation is used to calculate the rate constant (k) for a chemical reaction at a given temperature. It relates the rate constant to the activation energy (Ea), the gas constant (R), and the temperature (T) in Kelvin.
The Arrhenius equation is derived from the Boltzmann distribution, which describes the distribution of kinetic energy among particles in a system. By applying this distribution to a chemical reaction, the Arrhenius equation can be derived to relate the rate constant to temperature and the activation energy.
The activation energy (Ea) in the Arrhenius equation represents the minimum amount of energy required for a chemical reaction to occur. It determines the rate at which a reaction will occur and can provide insight into the stability and reactivity of a molecule.