Question

Does rate constant depend on activation energy?

Answer 1

• Yes, the rate constant is dependent on activation energy. If we increase the temperature of the reaction, we are actually increasing the kinetic energy of the molecules.
• Rate constant is defined as the proportionality constant which explains the relationship between the molar concentration of the reactants and the rate of a chemical reaction.

$$\begin{gathered} \mathrm{Rate}\mathrm{constant},\mathrm{r}=\mathrm{k}\left(\mathrm{T}\right){\left[\mathrm{A}\right]}^{\mathrm{m}}{\left[\mathrm{B}\right]}^{\mathrm{n}}\mathrm{Where},\mathrm{r}=\mathrm{reaction}\mathrm{rate} \\ \mathrm{k}\left(\mathrm{T}\right)=\mathrm{reaction}\mathrm{rate}\mathrm{constant}\mathrm{that}\mathrm{depends}\mathrm{on}\mathrm{temperature} \\ \left[\mathrm{A}\right]=\mathrm{molar}\mathrm{concentration}\mathrm{of}\mathrm{substances}\mathrm{A}\mathrm{in}\mathrm{moles}\mathrm{per}\mathrm{unit}\mathrm{volume}\mathrm{of} \\ \mathrm{solution} \\ \left[\mathrm{B}\right]=\mathrm{molar}\mathrm{concentration}\mathrm{of}\mathrm{substances}\mathrm{B}\mathrm{in}\mathrm{moles}\mathrm{per}\mathrm{unit}\mathrm{volume}\mathrm{of} \\ \mathrm{solution} \\ \mathrm{m},\mathrm{n}=\mathrm{partial}\mathrm{orders}\mathrm{of}\mathrm{reaction}. \end{gathered}$$