Question

What is the principle of working of pressure cooker?

Answer 1

Pressure cooker:

1. The boiling point of a given substance change in accordance with the external pressure, which is the principle of working of pressure cooker.
2. Pressure cooker is used to cook food faster.
3. The time required to cook the food is greatly reduced, if the water is made to boil at a higher temperature than its boiling point, which is ${100}^{0}C$.
4. The pressure cooker raises the boiling point of water, up to ${120}^{0}C$.