FAQ

What is the Actual Vapour Pressure?
The Actual vapour pressure refers to the pressure exerted by the water vapour present in the air, reflecting the current humidity and temperature, typically measured in cm Hg or kPa. Actual Vapour Pressure is usually measured using the Centimeter Mercury (0 °C) for Pressure. Note that the value of Actual Vapour Pressure is always positive.
Can the Actual Vapour Pressure be negative?
No, the Actual Vapour Pressure, measured in Pressure cannot be negative.
What unit is used to measure Actual Vapour Pressure?
Actual Vapour Pressure is usually measured using the Centimeter Mercury (0 °C)[cmHg] for Pressure. Pascal[cmHg], Kilopascal[cmHg], Bar[cmHg] are the few other units in which Actual Vapour Pressure can be measured.
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