Question

Rishi is surprised when he sees water boiling at 115°C in a container. Give reasons as to why water can boil at the above temperature.

Answer 1

Water can boil at 115°C due to the following reasons:

1. Increase in pressure: Rishi might have used a pressure cooker or a sealed container in which increased pressure raises the boiling point of water above 100°C.
2. Presence of dissolved substances: The water might contain a high concentration of dissolved impurities, such as salt or sugar, which increases its boiling point.