Question

On increasing the external pressure , the boiling point of liquid

• A. is raised
• B. is lowered
• C. remain unaffected
• D. uncertain

Answer 1

The correct option is A is raised

On increasing the external pressure, the boiling point of liquid is increased.

Boiling point is the temperature at which vapor pressure of the liquid equals to the external pressure.

V.P, of liquid is a function of temperature.

Now, if we increase the external pressure, a higher temperature would be required so that V.P. equals to external pressure.