A student conducted an experiment to determine the rate of a chemical reaction - VCE - SSCE Chemistry - Question 11 - 2023 - Paper 1

The initial rate of a reaction can be calculated by determining the change in concentration of a product over a specific time period. Therefore, the units of the initial rate of reaction can be expressed as concentration per unit time.

In this case, since the concentration is measured in moles per liter (M) and time is measured in seconds (s), the units of the initial rate would be:

$\text{Units of Initial Rate} = \frac{\text{Concentration (M)}}{\text{Time (s)}} = \text{M/s}$