. A sample of water under study was found to boil at
102°C at normal temperature and pressure.Is the water pure? Will this water freeze at 0°C? Comment.
Answer: The boiling point of pure water is 100 °C and the melting point is 0°C at 1 atmospheric pressure. Here the water boils at 102 °C hence it is not pure water and freezes at a temperature below 0°C.