Triple Point of Water to Réaumur Converter
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How to Convert Triple Point of Water to Réaumur
To Celsius: °C = Tₜ × 0.01. To Kelvin: K = Tₜ × 0.01 + 273.15.
1 Tₜ = 0.01 °C = 273.16 K. The triple point is a fixed thermodynamic state, not dependent on pressure corrections.
For example, 1 Triple Point of Water (Tₜ) = 0.008 Réaumur (°Ré).
Triple Point of Water to Réaumur — Common Values
| Triple Point of Water (Tₜ) | Réaumur (°Ré) |
|---|---|
| 0.1 | 0.0008 |
| 0.5 | 0.004 |
| 1 | 0.008 |
| 2 | 0.016 |
| 5 | 0.04 |
| 10 | 0.08 |
| 25 | 0.2 |
| 50 | 0.4 |
| 100 | 0.8 |
| 500 | 4 |
| 1000 | 8 |
About Triple Point of Water (Tₜ)
Definition
A unit based on the triple point of water — the unique temperature and pressure at which water coexists as solid, liquid, and gas simultaneously (0.01 °C / 273.16 K).
Mathematical Relationship
1 Tₜ = 0.01 °C = 273.16 K. The triple point is a fixed thermodynamic state, not dependent on pressure corrections.
Conversion Formula
To Celsius: °C = Tₜ × 0.01. To Kelvin: K = Tₜ × 0.01 + 273.15.
Practical Applications
Calibrating precision thermometers, validating temperature measurement systems, and establishing traceability in national labs.
Interesting Facts
The triple point of water requires extreme purity — even tiny impurities shift the temperature. It occurs at 611.657 Pa pressure, much lower than atmospheric.
Common Mistakes
Confusing the triple point (0.01 °C) with the normal freezing point (0 °C). The difference is tiny but critical in precision metrology.
Educational Tips
The triple point is where all three phases coexist. It's a unique, reproducible temperature — that's why it was perfect for defining the kelvin.
About Réaumur (°Ré)
Definition
The degree Réaumur is a historical temperature scale where water freezes at 0 °Ré and boils at 80 °Ré at standard pressure.
Mathematical Relationship
1 °Ré = 1.25 °C. The Réaumur scale divides the freezing-to-boiling range of water into 80 degrees instead of 100.
Conversion Formula
To Celsius: °C = °Ré × 5/4. To Fahrenheit: °F = °Ré × 9/4 + 32. To Kelvin: K = °Ré × 5/4 + 273.15.
Practical Applications
Some traditional Italian pasta and cheese production references still mention Réaumur temperatures from historical recipes.
Interesting Facts
Réaumur used an alcohol-based thermometer, not mercury. Russia used the Réaumur scale as its standard until the early 20th century.
Common Mistakes
Confusing °Ré with °R (Rankine) — they are entirely different scales. Always use the full abbreviation °Ré.
Educational Tips
Think of Réaumur as 'Celsius with 80 divisions instead of 100.' Multiply Réaumur by 1.25 to get Celsius.