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

Hint: To determine the boiling point of water we have to boil the water till maximum temperature. But while reaching the boiling point the water starts to evaporate and a lot of bubbles will be created during the boiling of water.

Complete step-by-step answer:- In the question it is asked how does pumice help to find the boiling point of water.
- The temperature at which the water starts evaporates is called boiling point of water.
- At the time of boiling of water we immerse the thermometer into the water.
- But due to the creation of a lot of bubbles it is very difficult to find the boiling point of the water.
- So, we have to decrease the creation of bubbles while heating the water.
- For this purpose we have to add the pumice stones or pumice stone pieces to the water before going to start the boiling process.
- If we add the pumice stone pieces to the water we can avoid the generation of the bubbles at the boiling.
- Therefore by adding pumice stone pieces we can stop the generation of the bubbles and we can find the boiling point of the water accurately.

Note: Pumice stone pieces will stop the bumping of the water while heating the water. The thermometer has to be impressed properly while finding the boiling point of water. Pumice stone pieces are cheap and can filter it very easily after the experiment.