VanderGas

VanderGas is a thermodynamics and physical chemistry tool that demonstrates the Van der Waals equation for gases.

Key Features:
Van der Waals Equation Calculator: Select from CO₂, H₂O, N₂, or CH₄ and calculate pressure using the Van der Waals equation. Compare results with ideal gas law predictions and see the deviation percentage.
Interactive p-V Isotherm Diagram: Visualize pressure-volume curves at different temperatures. The diagram shows the critical point, liquid-gas coexistence region, and Maxwell equal-area construction line.
Critical Point Properties: View critical temperature (Tc), critical pressure (pc), and critical volume (Vc) for each gas with detailed formulas.
Real vs Ideal Gas Comparison: Generate comparison tables showing how Van der Waals gas pressure differs from ideal gas predictions across a range of volumes, with behavioral analysis.
Built-in Gas Constants: Pre-loaded Van der Waals constants (a and b) for four common gases.
Offline Operation: All calculations are performed locally on your device. No internet connection required for core functionality.
This tool is designed for anyone interested in understanding real gas behavior beyond the ideal gas law.