How does pumice help while finding the boiling point of water?

Pumice is generally immersed in water while finding it's boiling point.

1 Answer
anor277
Oct 2, 2017

The added pumice acts as a boiling chip.....

Explanation:

The added pumice acts as a boiling chip.....as a site of nucleation.

If you add the chip to the hot solution, sometimes you may get many bubbles and activity; normally the chip is added to the cold liquid, which is then brought to the boiling point. Without the pumice, your solution may superheat, and bump.

Related questions
See all questions in Vapor Pressure and Boiling
Impact of this question
1979 views around the world
You can reuse this answer
Creative Commons License