Question

What is measured by the reaction rate?

Answer 1

The reaction rate is the speed at which products form, based on the rate of the slowest step in the mechanism.

Answer 2

Answer: Option (a) is the correct answer.

Explanation:

Rate of reaction is defined as the rate at which a chemical reaction occurs. That is, it tells how rapidly or slowly the products are formed.

Mathematically,         Rate = $\frac{-\Delta [reactants]}{\Delta t}$

It also tells the number of successful collisions taking place.

Thus, we can conclude that the speed at which products form is measured by the reaction rate.