1.

The bulb of thermometer is kept above the surface of water while determining theboiling point eof water". Give reason.

Answer» <p>Bulb of a thermometer is always kept above the surface of water while determining the boiling point so as to make sure that the bulb doesn't breaks due to very high temperatureif the bulb is kept inside the boiling water it may break and the temperature cannot be taken.</p> <p>Theboiling pointis definedasthe temperature at which the vapour pressure is exactly equal to the external pressure. ... This, the steam justabovethewaterwill be a bettermeasureof theboiling pointbecause it will not yet have had a chance to cool down</p>


Discussion

No Comment Found