As water is so common-place, it is often regarded as a �typical� liquid. In reality water is most atypical as a liquid, with its properties at low temperatures quite different from its properties when hot. It has often been stated (e.g. [127]) that life depends on these anomalous properties of water. In particular, the large heat capacity, high thermal conductivity and high water content in organisms contribute to thermal regulation and prevent local temperature fluctuations, thus allowing us to more easily control our body temperature. The high latent heat of evaporation gives resistance to dehydration and considerable evaporative cooling. Water is an excellent solvent due to its polarity, high dielectric constant and small size, particularly for polar and ionic compounds and salts
by
paleorthid
2006-02-25 20:50
water
·
chemistry
·
science