Relative humidity
Relative humidity is a measure of water steam concentration in a gas. The measurement units are the %RH that indicates the concentration of the mentioned steam relative to saturation. For example, a 0%RH indicates It indicates a total absence of water and 100% indicates that the concentration is saturated and therefore the condensed water (under these conditions of temperature and pressure, the air is not able to withstand a higher concentration of steam). Humidity vary when increasing pressure or decreasing temperature. Thus, with the same mass of water steam, increasing the pressure will increase the relative humidity to a point [...]