question_answer

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. The given sample, boiling at 102°C, indicates that it contains dissolved impurities. Thus it is not pure. No, the water will not freeze at 0°C. Instead, it will freeze below 0°C.                                     (1)