The rice is cooked more quickly in a pressure cooker because

Team MCQ Buddy • 20.45K Points
Instructor III Physics

Q. The rice is cooked more quickly in a pressure cooker because

(A) It is covered.
(B) Less quantity of water is used.
(C) None of these
(D) Water boils at a higher temperature under pressure.

Correct Answer - Option(D)
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Explanation by: Team MCQ Buddy

Food is cooked more quickly in a pressure cooker because at the higher pressure (1 bar/15 psi), the boiling point of water rises from 100°C (212°F) to 121°C (250°F). The hotter steam is able to transmit its thermal energy to the food at around 4 times the rate of conventional boiling.

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