The music video for John Legend 's single Everybody Knows has already been viewed 9,997 times since it was posted on Tuesday, January 20, 2009. The video belongs to the music genre of R&B.
hydration (Noun). the process of providing an adequate amount of water to body tissues. hydration (Noun). the chemical reaction by which a substance (such as cement) combines with water, giving off heat to form a crystalline structure in its setting and hardening.
By definition, the enthalpy of hydration, #Î´_hydH#, is the enthalpy change that takes place when 1 mol of gaseous ion is dissolved in excess water to make one mole of aqueous ion. Significance of hydration enthalpy. It gives an indication of the strength of the interaction of water molecules with the ions.