Question

In the determination of boiling point of water ,it is advised to put the bulb of the thermometer above the water rather than in water. Why?

Please Honestly batana please​

Answer 1

Those bubbles will stop expanding when the pressure just exactly equals the boiling point and will stay there as they finish rising in the pot. Thus, the steam just above the water will be a better measure of the boiling point because it will not yet have had a chance to cool down.