Boiling Point Calculator
Use the Boiling Point Calculator for a transparent, instant calculation with validated inputs and cited sources. For a query such as “at what temperature does the water boil”, enter the matching values and units below and review the stated assumptions.
How to use this calculator
Enter the requested values and units.
Review the assumptions and any warnings shown with the result.
Use the result together with the cited source and your real-world requirements.
Formula
Use the integrated Clausius–Clapeyron approximation 1/T₂ = 1/T₁ − (R/ΔHᵥₐₚ) × ln(P₂/P₁), with absolute temperatures in kelvin.
Worked example
Worked example: Inputs: Known boiling temperature: 100 °C; Known pressure: 101.325 kPa; Target pressure: 80 kPa; Molar enthalpy of vaporization: 40.65 kJ/mol. Outputs: Estimated boiling temperature: 93.3892115488 °C.
Assumptions and limits
- The result depends on the values, units, and assumptions entered. It does not infer missing context.
Sources
- OpenStax, Rice University: Chemistry 2eReference material reviewed for the stated method, units, or domain. Confirm that its scope matches your use case. Reviewed 2026-08-14.
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Verification
How this calculator is checked
Trust comes from reproducible evidence, not model confidence. You can inspect the formula, assumptions, worked example, and cited sources on this page.
- Versioned calculationFormula logic is kept separate from the interface and covered by automated registry and behavior checks.
- Cited evidenceSources linked for independent checking: 1.
- Transparent AI useAI may assist drafting or adversarial review. Agreement between models is not proof, and no human expert review is claimed unless a named reviewer is shown.
Frequently asked questions
How does the Boiling Point Calculator work?
Use the integrated Clausius–Clapeyron approximation 1/T₂ = 1/T₁ − (R/ΔHᵥₐₚ) × ln(P₂/P₁), with absolute temperatures in kelvin. A question such as “at what temperature does the water boil” uses this method only when its units and required assumptions match the fields above.
What should I enter?
Known boiling temperature, Known pressure, Target pressure, Molar enthalpy of vaporization
What should I verify?
Review the assumptions and any warnings shown with the result. The result depends on the values, units, and assumptions entered. It does not infer missing context.
Last updated 2026-08-25 · science-boiling-point-v1 · opportunity-source-2026-08-24 · Published by YunFanLabs