Water Has Unusual Properties

• Water is a small molecule

  • H2O -- 18 g/mole
  • N2 -- 28 g/mole
  • CH4 -- 16 g/mole

• Water has an abnormally high melting point and boiling point

  • H20: melts at 0oC, boils at 100oC
  • N2: -207oC -196oC
  • CH4: -183oC -161oC

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