With increase in temperature, the rate constant obeying Arhenious equation

Answer: Option A

According to the Arrhenius equation, the rate constant (k) increases with an increase in temperature.

The Arrhenius equation is given by: $$k=A\exp \left(-\frac{E_a}{RT}\right)$$.

Here, k is the rate constant, A is the pre-exponential factor, E_a is the activation energy, R is the gas constant, and T is the temperature in Kelvin.

As the temperature T increases, the exponential term becomes larger, leading to an increase in the rate constant.