Relative humidity. Relative humidity (RH) is the ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at a given temperature. Relative humidity depends on temperature and the pressure of the system of interest. It requires less water vapor to attain high relative humidity at low temperatures; more water vapour is required to attain high relative humidity in warm or hot air.
silver is the color of the element mercury silver is the color of the element mercury Silvery.
Mercury's most well known feature is that it is a metal at room temperature. Mercury is the only metal to have this property (though some metals melt slightly above room tempeâ¦rature). In fact, mercury is one of only two elements (the other being bromine) that are liquid at room temp.