Chemistry
Grade-6
Easy
Question
If the external pressure = 1atm, the boiling point of liquid is called:
- Melting point
- Boiling point
- Normal boiling point
- Vaporization
Hint:
A.P.=V.P. liquid starts boiling.
The correct answer is: Normal boiling point
- When the vapor pressure is equal to atmospheric pressure water starts boiling.
- At the normal boiling point, vapor pressure is equal to standard atmospheric pressure i.e. 1 atm
- If the external pressure is 1 atm boiling point is normal boiling point.
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