Physical properties water has several important physical properties although these properties are familiar because of the omnipresence of water most of the physical properties of water are quite atypical given the low molar mass of its constituent molecules water has unusually large values of viscosity surface tension heat of vaporization . Physical properties of water water is a colourless and tasteless liquid the molecules of water have extensive hydrogen bonds resulting in unusual properties in the condensed form this also leads to high melting and boiling points. Water has a very high specific heat capacity of 41814 j kgk at 25 c the second highest among all the heteroatomic species after ammonia as well as a high heat of vaporization 4065 kj mol or 2257 kj kg at the normal boiling point both of which are a result of the extensive hydrogen bonding between its molecules these two unusual properties allow water to moderate earths . Some physical properties of water are listed below i pure water is colorless odorless and tasteless liquid ii pure water freezes atomic 0c and boils atomic 100c under 1 atm pressure advertisements iii water is a non conductor of electricity and heat