Read the Passage carefully and answer the Questions.

Kinetic studies not only help us to determine the rate of a chemical reaction but also describe the conditions by which the reaction rates can be altered. The factors such as concentration, temperature, pressure and catalyst affect the rate of a reaction. The speed of a reaction or the rate of a reaction can be defined as the change in concentration of a reactant or product in unit time.

Rate = $k [A]^x [B]^y$

Here k is the rate constant

$x + y$ gives the overall order of a reaction, whereas x and y represent the order with respect to the reactants A and B, respectively. 

If the temperature is raised by 10 °C, then the rate of the reaction increases approximately by

Two times

The correct answer is Option (1) → Two times

According to the van’t Hoff rule, for many chemical reactions:

For every 10 °C rise in temperature, the rate of reaction approximately doubles.

So, when the temperature is raised by 10 °C, the reaction rate increases by:

✅ Two times