Question

What are the units of rate of reaction?

Short answer

Answer: The units of the rate of reaction are mol/(L·s).

Step-by-step solution

Identify the units of concentration and time

The concentration of a reactant or product is usually expressed in moles per liter (mol/L or M) and time is usually measured in seconds (s).

Write the definition of rate of reaction

The rate of reaction is the change in concentration of a reactant or product per unit time. Mathematically, it can be written as: Rate of reaction = \(\frac{\Delta (\text{concentration})}{\Delta (\text{time})}\)

Substitute the units into the formula

Now, we can substitute the units of concentration and time into the formula: Rate of reaction = \(\frac{\Delta (\text{mol}/\text{L})}{\Delta (\text{s})}\)

Simplify the units

Finally, we simplify the units to find the units of the rate of reaction: Units of Rate of reaction = \(\frac{\text{mol}}{\text{L} \cdot \text{s}}\) Therefore, the units of the rate of reaction are \(\frac{\text{mol}}{\text{L} \cdot \text{s}}\).