Question

A pressure cooker reduces cooking time for food, because ___________

(a) Heat is more evenly distributed in the cooking space

(b) The higher pressure inside the cooker crushes the food material

(c) Cooking involves chemical changes helped by a rise in temperature

(d) Boiling point of water involved in cooking is increased

The question was posed to me during an online exam.

My enquiry is from Thermal Conduction in chapter Mechanical Properties of Solids of Engineering Physics I

Answer 1

The correct choice is (d) Boiling point of water involved in cooking is increased

For explanation I would say: As the pressure inside the pressure cooker increases, the boiling point of water increases.