explain why a small volume of water taken in a pressure cooker can produce a large amount of steam when pressure is released
Answers
Answered by
14
Pressure cooker is a very useful household item.
Principle of Working:
************************************
Boiling Point of water raises with increase of Pressure.
************************************
How it works:
1.Pressure cooker consist of a strong aluminium or stainless steel container fitted with a lid having a rubber gasket.
2.At the centre of a lid, a weight valve is arranged.
3.A small amount of water is taken inside the cooker
4.The rubber gasket does not allow the steam to go out.
5. Hence pressure inside cooker increases.
6. The temperature inside the pressure cooker raises up to 120 degrees Celsius which saves our fuel and time.
7.Hence small amount of water taken in cooker can produce large amount of steam when pressure is released.
Principle of Working:
************************************
Boiling Point of water raises with increase of Pressure.
************************************
How it works:
1.Pressure cooker consist of a strong aluminium or stainless steel container fitted with a lid having a rubber gasket.
2.At the centre of a lid, a weight valve is arranged.
3.A small amount of water is taken inside the cooker
4.The rubber gasket does not allow the steam to go out.
5. Hence pressure inside cooker increases.
6. The temperature inside the pressure cooker raises up to 120 degrees Celsius which saves our fuel and time.
7.Hence small amount of water taken in cooker can produce large amount of steam when pressure is released.
Answered by
19
Steam is a gas, whereas water is a liquid. Water has a fixed volume, but no fixed shape. On the other hand, gas has neither fixed volume nor shape.
As a result, when a small amount of water is heated in a pressure cooker, the steam which is released tries to expand as much as possible. This is because of the very weak Van der Waals forces of attraction between individual gas molecules. This is why a large amount of steam is produced inside a pressure cooker.
As a result, when a small amount of water is heated in a pressure cooker, the steam which is released tries to expand as much as possible. This is because of the very weak Van der Waals forces of attraction between individual gas molecules. This is why a large amount of steam is produced inside a pressure cooker.
Similar questions