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InterviewSolution
| 1. |
A sample of water under supply was found to boil at 102^(@)C at normal temperature and pressure. It the water pure ? Will this water freeze at 0^(@)C ? Comment. |
| Answer» Solution :Under NORMAL temperature and pressure, the boilingpoint temperature of pure water is `100^(@)C`. The boiling point of `102^(@)C` MEANS that the given sample is IMPURE and has non-volatile impurities present. This impure sample will have FREEZING point temperature below `0^(@)C`. Please remember that the presence of impurities raises the boiling point temperature of a liquid and lowers its freezing point. | |