Question

0.3

The boiling point of water at sea level is 100°C. What will happen to the boiling point as the
altitude increases? Explain your answer.

Answer 1

Answer:

The Boiling Point decreases as altitude increases.

Explanation:

As elevation increases, atmospheric pressure decreases because air is less dense at higher altitudes.

Because the atmospheric pressure is lower, the vapour pressure of the liquid needs to be lower to reach boiling point.

Therefore, less heat is required to make the vapour pressure equal to the atmospheric pressure. The boiling point is lower at higher altitude.

Or to simply remember ; Pressure is directly proportional to Boiling Point !

Hence if pressure decreases , B.P decreases .

Sincerely ,

H S