The constant a in van der Waals' equation can be regarded as a measure of intermolecular forces in a real gas.

Explanation

To determine whether the statement "The constant a in van der Waals' equation can be regarded as a measure of intermolecular forces in a real gas" is true or false, we can analyze the van der Waals equation and the role of the constant 'a'.

### Step-by-Step Solution:

1. **Understanding the Van der Waals Equation**:
The van der Waals equation is given by:
\[
\left( P + \frac{a n^2}{V^2} \right) (V - nb) = nRT
...