Question

Working of a pressure cooker is based on the principle that boiling point of water increases with the _______.

• A. increase in temperature
• B. increase in volume
• C. increase in pressure
• D. decrease in pressure

Answer 1

The correct option is C

increase in pressure

As the cooker heats up, the liquid inside forms steam, which raises the pressure inside the cooker. This increase in pressure helps to increase the boiling point of water.
When cooking something wet, like a stew or steamed vegetables, the heat of cooking is limited to the boiling point of water. With the steam’s pressure, the boiling point can get a lot higher as compared to the open container. This higher boiling point helps the food to cook faster.