Triple Point of Water to Kelvin Converter
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6 units available
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How to Convert Triple Point of Water to Kelvin
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) = 273.16 Kelvin (K).
Triple Point of Water to Kelvin — Common Values
| Triple Point of Water (Tₜ) | Kelvin (K) |
|---|---|
| 0.1 | 273.151 |
| 0.5 | 273.155 |
| 1 | 273.16 |
| 2 | 273.17 |
| 5 | 273.2 |
| 10 | 273.25 |
| 25 | 273.4 |
| 50 | 273.65 |
| 100 | 274.15 |
| 500 | 278.15 |
| 1000 | 283.15 |
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 Kelvin (K)
Definition
The kelvin is the SI base unit of thermodynamic temperature, defined by fixing the Boltzmann constant at exactly 1.380649 × 10⁻²³ J/K. Zero kelvin (0 K) is absolute zero.
Mathematical Relationship
K = °C + 273.15. The kelvin scale starts at absolute zero (0 K = −273.15 °C). Same degree size as Celsius.
Conversion Formula
To Celsius: °C = K − 273.15. To Fahrenheit: °F = (K − 273.15) × 9/5 + 32. To Rankine: °R = K × 9/5.
Practical Applications
Color temperature of lights (e.g., 2700 K warm white, 6500 K daylight), cryogenics, and engineering thermodynamics.
Interesting Facts
The cosmic microwave background radiation has a temperature of 2.725 K. The surface of the Sun is about 5,778 K. Absolute zero has never been fully reached.
Common Mistakes
Writing '°K' instead of 'K' — kelvin never uses a degree sign. Also, confusing 0 K with 0 °C.
Educational Tips
Kelvin = Celsius + 273.15. There are no negative kelvins (in classical physics). Absolute zero (0 K) is the theoretical minimum temperature.