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why it is so that a liquid boils when its vapour pressure becomes equal to the atmospheric pressure?

why it is so that a liquid boils when its vapour pressure becomes equal to the atmospheric pressure?

Grade:12

2 Answers

SAGAR SINGH - IIT DELHI
878 Points
13 years ago

Dear student,

This is because the temperature reaches to the boiling point temp...

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Askiitians Expert

Sagar Singh

B.Tech, IIT Delhi

Chetan Mandayam Nayakar
312 Points
13 years ago

When temp. is less than boiling point, evaporation takes place fom surface only. At boiling point vapour pressure= atmospheric pressure and evaporation takes place throughout the volume of the liquid. This phenomenon is known as boiling.

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