The correct answer is C. Arrhenius equation.
The Arrhenius equation is a mathematical equation that relates the rate of a chemical reaction to the temperature at which the reaction is taking place. The equation is:
$$k = Ae^{-E_a/RT}$$
where:
- $k$ is the rate constant
- $A$ is the frequency factor
- $E_a$ is the activation energy
- $R$ is the ideal gas constant
- $T$ is the temperature in Kelvin
The Arrhenius equation can be used to predict how the rate of a reaction will change as the temperature changes. The equation shows that the rate constant increases exponentially as the temperature increases. This is because the higher the temperature, the more energy the molecules have, and the more likely they are to have the energy required to overcome the activation energy and react.
The Arrhenius equation is a very useful tool for chemists, as it allows them to predict how the rate of a reaction will change under different conditions. This information can be used to optimize the conditions for a reaction, such as the temperature, pressure, and concentration of the reactants.
The other options are incorrect because they do not relate to the rate of a chemical reaction.
- Van der Waals equation is an equation of state for a real gas. It is a modification of the ideal gas law that takes into account the volume occupied by the molecules of the gas and the attractive forces between the molecules.
- Kirchhoff’s equation is an equation that relates the intensity of light emitted by a blackbody to its temperature.
- Lewis equation is an equation that describes the bonding between atoms in a molecule.