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Water vapor (H2O) | |
---|---|
Invisible water vapor condenses to form
visible clouds of liquid rain droplets | |
Liquid state | Water |
Solid state | Ice |
Properties[1] | |
Molecular formula | H2O |
Molar mass | 18.01528(33) g/mol |
Melting point | 0.00 °C (273.15 K)[2] |
Boiling point | 99.98 °C (373.13 K)[2] |
specific gas constant | 461.5 J/(kg͘K) |
Heat of vaporization | 2.27 MJ/kg |
Heat capacity at 300 K | 1.864 kJ/(kg͘K)[3] |
參照 [修改]
- ↑ (Lide 1992)
- ↑ 2.0 2.1 Vienna Standard Mean Ocean Water (VSMOW), used for calibration, melts at 273.1500089(10) K (0.000089(10) °C) and boils at 373.1339 K (99.9839 °C)
- ↑ "Water Vapor – Specific Heat". May 15, 2012 khòaⁿ--ê.
- ↑ Ogawa Naoyosi, pian. (1931). "水蒸氣". Tai-Nichi Dai Jiten 臺日大辭典 [台日大辭典] (ēng Ji̍t-pún-gí).
Pún 文章 sī chi̍t phiⁿ phí-á-kiáⁿ. Lí thang tàu khok-chhiong lâi pang-chō͘ Wikipedia. |