Boiling point of water gets lowered at high altitudes (e.g., hills), because ___________________?
Correct answer: B. Atmospheric pressure is low
- A. Temperature is low
- B. Atmospheric pressure is low
- C. Atmospheric pressure is high
- D. None of these
Explanation
Boiling occurs when a liquid's vapour pressure equals the surrounding pressure. At high altitude atmospheric pressure is lower, so water reaches this condition at a lower temperature.
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