Multiple choice

Vegetables can be cooked quickly in a pressure cooker because

  1. steam can boil vegetables faster than water

  2. boiling point increases with the increase in pressure

  3. high pressure lowers the boiling point

  4. all the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A pressure cooker traps steam, which increases the internal pressure. According to the laws of thermodynamics, an increase in pressure raises the boiling point of water, allowing food to cook at a higher temperature.

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