Wolfram|Alpha

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Input interpretation:

water | pressure | 20 atm  (atmospheres)\nphase boundary | saturation


Thermodynamic properties:

phase | saturated fluid |  \ntemperature | 486.2 K\n213 °C |  \npressure | 2.027×10^6 Pa\n20 atm |  \ndensity | liquid (liquid water) | 849 kg\/m^3\n  | gas (steam) | 10.17 kg\/m^3\nsound speed | liquid (liquid water) | 2883 mph

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