Question : Why boiling point of water decrease at high altitudes?
Option 1: Because of the high temperature
Option 2: Because of low atmospheric pressure
Option 3: Because of low temperature
Option 4: Because of high atmospheric pressure
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Correct Answer: Because of low atmospheric pressure
Solution : The correct option is Because of low atmospheric pressure .
At higher elevations, the decrease in atmospheric pressure causes a reduction in the boiling point of water. Boiling occurs when a liquid's vapour pressure matches the atmospheric pressure. With lower atmospheric pressure at higher altitudes, water molecules can more easily transition into vapour. As a result, less energy is required to reach the boiling point, leading to a lower boiling temperature.
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