Physics · Thermal Properties of Matter
At high altitudes such as hill stations, water boils at a temperature lower than 100°C, whereas in a pressure cooker it boils above 100°C. Which of the following statements correctly explains this phenomenon?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Boiling point of a liquid decreases with an increase in atmospheric pressure and increases with a decrease in atmospheric pressure.
- 2Boiling point of a liquid increases with an increase in atmospheric pressure and decreases with a decrease in atmospheric pressure.✓
- 3Boiling point of a liquid is independent of external pressure and depends only on temperature.
- 4Water molecules at high altitude have lower kinetic energy than at sea level, so they boil at a lower temperature.
Correct answer
Boiling point of a liquid increases with an increase in atmospheric pressure and decreases with a decrease in atmospheric pressure.
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