Why does the boiling point of water increase in a pressure cooker?
Answer and explanation
Correct answer: Because the external pressure inside increases
A pressure cooker confines steam and raises the pressure above the water. Since boiling requires the water vapour pressure to equal the external pressure, water must reach a higher temperature before that condition is met. The increase is caused by pressure, not sweetness, colour, or a zero vapour pressure.
Frequently asked questions
What is the correct answer to this question?
Because the external pressure inside increases
Why is this the correct answer?
A pressure cooker confines steam and raises the pressure above the water. Since boiling requires the water vapour pressure to equal the external pressure, water must reach a higher temperature before that condition is met. The increase is caused by pressure, not sweetness, colour, or a zero vapour pressure.
Which subject and chapter does this question cover?
This is a Class 11 Chemistry question. Chapter: Equilibrium. Topic: Equilibrium in physical and chemical processes.
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