In a pressure cooker the cooking is fast because ........

General Science (Easy) Physics

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In a pressure cooker the cooking is fast because

the boiling point of water is raised by the increased pressure inside the cooker

the B.P. of water is lowered by the increase depressed

more steam is available to cook the food at 1000 C

None of these

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Explanation:

the boiling point of water is raised by the increased pressure inside the cooker

The steam transfers this thermal energy to the food that is being cooked. This heat is used up by the food to get cooked properly. Thus, in a pressure cooker since the boiling point increases, the steam has greater thermal energy which it can transfer to the food and hence the cooking is faster.