-200 degrees Celsius
73.15 KTemperature · definition
Celsius and Fahrenheit have shifted zero points. Differences are useful; “twice as hot” in °C or °F is not a physical temperature ratio.
Temperature
Just how hot is -200 degrees Celsius?
Deep cold
-200 °C
-200 degrees Celsius
Celsius and Fahrenheit have shifted zero points.
73.15 KTemperature
0 K · absolute zero
Boiling nitrogen
Boiling nitrogen is nitrogen gas produced when liquid nitrogen is heated at normal atmospheric pressure.
77.36 KTemperature
0 K · absolute zero
Celsius and Fahrenheit zero points are offsets. Compare temperature differences, not ratios in °C or °F. The kelvin axis starts at absolute zero.
A little perspective
-200 degrees Celsius is 4.21 K lower than the temperature of boiling nitrogen.
Measurements, assumptions & sources +
-200 degrees Celsius
Temperature: 73.15 K; definition.
Celsius and Fahrenheit have shifted zero points. Differences are useful; “twice as hot” in °C or °F is not a physical temperature ratio.
Boiling nitrogen
Temperature: 77.36 K; approximate.
Approximate normal boiling point at one atmosphere.
NIST Chemistry WebBook — Nitrogen phase data
The marked temperature is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare -200 degrees Celsius with the temperature of boiling nitrogen. The notes below explain how each value was chosen.
Boiling nitrogen
77.36 KTemperature · approximate
Approximate normal boiling point at one atmosphere.
- Comparing
- Temperature ↔ Temperature
- Relative size
- We compare temperatures using a difference in kelvins, not a ratio.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- The temperature of boiling nitrogen: This is an estimate; check the notes for its rounding and uncertainty.
Compare temperature differences in kelvins; Celsius and Fahrenheit ratios are not meaningful.
-328 °Fdegrees Fahrenheit
73.15 Kkelvin
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