Clausius-Clapeyron Vapor Pressure Calculator

Estimate the vapor pressure of a liquid at a target temperature from a known pressure, temperature, and heat of vaporization

Frequently Asked Questions

What does the Clausius-Clapeyron equation describe?

It describes how the vapor pressure of a liquid changes with temperature, using the enthalpy of vaporization. Vapor pressure rises exponentially as temperature increases.

What units should I use?

Enter both temperatures in kelvin and the heat of vaporization in kilojoules per mole. The result comes out in the same pressure units you entered for the known pressure.

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.