Chemical KineticshardMCQ SINGLE⭐ Must-Do

By mathematically linking the Arrhenius equations of a specific reaction operating cleanly at two diChemical Kinetics Chemistry Question

Question

By mathematically linking the Arrhenius equations of a specific reaction operating cleanly at two distinct absolute temperatures ($T_1$ and $T_2$), the precise overall activation energy ($E_a$) can be isolated. What is the rigorously correct formulation of this dual-temperature equation using base-10 logarithms?

Answer: B

💡 Solution & Explanation

Integrating the fundamental Arrhenius formula between boundary states $T_1$ and $T_2$ and converting from natural log ($\ln$) to standard base-10 log exactly mandates the introduction of the $2.303$ divisor. The correct isolated temperature bracket cleanly features the higher temperature $T_2$ positively leading the numerator: $\frac{T_2-T_1}{T_1 T_2}$.

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