Unlabeled

Boiling point of water by altitude

In the standard atmosphere water boils at 100 °C at sea level but at only 70 °C at 9,000 m: about one degree lost for every 297 m climbed.

What does this axis measure?
What does this axis measure?
Boiling point of water by altitude: 37 points, a line chart.
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Boiling point (°C)
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Altitude (m)
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The data: 37 points
Altitude (m)Boiling point (°C)
099.97
25099.14
50098.31
75097.48
100096.65
125095.82
150094.98
175094.15
200093.32
225092.48
250091.65
275090.81
300089.98
325089.14
350088.3
375087.47
400086.63
425085.79
450084.95
475084.11
500083.27
525082.43
550081.58
575080.74
600079.9
625079.05
650078.21
675077.36
700076.51
725075.67
750074.82
775073.97
800073.12
825072.26
850071.41
875070.56
900069.7
Source
Computed: IAPWS-IF97 saturation temperature at U.S. Standard Atmosphere 1976 pressure via U.S. Standard Atmosphere, 1976 (NOAA, NASA, USAF)
Licence
Public domain (computed from published formulas)
Read
2026-09-27
Drawn
37 points as the puzzle showed them · line
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