What is the Real Gas Equation Calculator?

The Real Gas Equation Calculator computes the pressure of a gas using the Van der Waals equation, which accounts for intermolecular forces and the finite size of gas molecules. By entering the gas properties (pressure, volume, moles, temperature) along with the Van der Waals constants aaa and bbb, this tool calculates the corrected real gas pressure. It helps students, chemists, and enthusiasts analyze deviations from ideal gas behavior in real-world conditions.

How to Use:

1. Enter Pressure (P): Input the initial pressure in atmospheres (atm).
2. Enter Volume (V): Type the volume of the gas in liters (L).
3. Enter Moles (n): Input the number of moles of the gas.
4. Enter Temperature (T): Enter the temperature in Kelvin (K).
5. Enter Van der Waals Constants (a & b): Input the constants for the specific gas (a in L²·atm/mol², b in L/mol).
6. Click “Calculate”: The calculator uses the Van der Waals equation to compute the real gas pressure.
7. Review the Result: The output displays the corrected pressure, allowing analysis of real gas behavior compared to the ideal gas approximation.