What happens when atmospheric pressure becomes equal to vapor pressure ?
Answers
When the atmospheric pressure is equal to the vapor pressure of the liquid, boiling will begin. When a liquid boils, what is inside the bubbles? The bubbles in a boiling liquid are made up of molecules of the liquid which have gained enough energy to change to the gaseous phase.
Answer:
The boiling point of a substance is the temperature at which the vapor pressure of the liquid equals the pressure surrounding the the liquid and the liquid changes into the vapor. The boiling point of a liquid varies depending on the surrounding emmision mental pressure.
Therefore, the liquid boils.
OR
Therefore the phenomenon of boiling of a liquid is closely related to the vapour pressure. In fact, when the vapour pressure of a liquid becomes equal to the total pressure impressed on its surface, the liquid starts boiling.