Q150
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.
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
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.