$A$ catalyst increases the rate of a chemical reaction by

Which of the following statements is true about the equilibrium constant and rate constant of a single-step chemical reaction?

The Arrhenius equation expressing the effect of temperature on the rate constant of a reaction is

Write the Arrhenius equation representing the relationship between the rate constants $k_1$ and $k_2$ at two different temperatures $T_1$ and $T_2$.

The rate of a reaction decreased by $3.555$ times when the temperature was changed from $40^{\circ} C$ to $30^{\circ} C$. The activation energy of the reaction is.........$kJ \, mol^{-1}$.
[Take; $R = 8.314 \, J \, mol^{-1} \, K^{-1}$,$\ln(3.555) = 1.268$]

Which of the following graphs between the rate constant $(k)$ and temperature $(T)$ represents the Arrhenius equation?