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Elevation in Boiling Point

At high altit...

Question

At high altitudes, the boiling point of water lowers because :

A

atmospheric pressure is low

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B

temperature is low

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C

atmospheric pressure is high

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D

all of the above

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Solution

The correct option is A atmospheric pressure is low
High altitudes have lower atmospheric pressure. As you get higher up into the atmosphere the air pressure gets lower therefore, boiling point of water will generally be at lower temperature.

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Similar questions

Q. Assertion :At high altitudes the boiling point of water is low. Reason: At high altitudes atmospheric pressure is low.

Choose the correct option.

Q. Assertion :At high altitudes, liquids boil at lower temperatures in comparison to that at sea level. Reason: At high altitudes, atmospheric pressure is low.

Q. Statement I
Water boils at a lower temperature at high altitudes compared to low altitudes
Because
Statement II
The vapor pressure of water is lower at higher altitude

Q. Statement 1: Water boils below

100^{o} C

at high altitudes.
Statement 2: Atmospheric pressure varies inversely with altitude.

Q. Assertion (A):The temperature at which vapour pressure of a liquid equal to the external pressure is called boiling temperature.
Reason (R): At high altitude atmospheric pressure is high.

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