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.

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