Chemistry
Grade-6
Easy
Question
If the external pressure is greater than 1atm, the normal boiling point of the liquid is:
- Less than the boiling point
- Greater than the boiling point
- Equal to the boiling point
- Remains constant
Hint:
A.P.=V.P. liquid starts boiling.
The correct answer is: Less than the boiling point
- At the normal boiling point, the vapor pressure is equal to the standard atmospheric pressure.
- If the external pressure is greater than 1atm, the normal boiling point of the liquid is increased.
- Boiling of liquid will start only when A.P.=V.P.
- In the hilly areas, atmospheric pressure decreases and water starts boiling below 100
.
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