Van Der Waals Equation Calculator

Calculate using Van Der Waals Equation









Formula

To calculate using the Van Der Waals Equation:

\[ P = \frac{RT}{V - b} - \frac{a}{V^2} \]

Where:

What is the Van Der Waals Equation?

The Van Der Waals equation is a mathematical expression that describes the behavior of real gases, taking into account the finite size of molecules and the intermolecular forces between them. It is an improvement over the ideal gas law, which assumes that gas molecules have no volume and do not interact with each other.

Example Calculation 1

Let's assume the following values:

Using the formula:

\[ P = \frac{0.0821 \times 300}{2 - 0.0318} - \frac{1.36}{2^2} = 12.17 \text{ atm} \]

The pressure is approximately 12.17 atm.

Example Calculation 2

Let's assume the following values:

Using the formula:

\[ P = \frac{0.0821 \times 350}{1 - 0.0867} - \frac{0.427}{1^2} = 31.04 \text{ atm} \]

The pressure is approximately 31.04 atm.