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Boiling

Boiling point...

Question

Boiling point is the temperature at which the vapour pressure becomes equal to ........ .

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Solution

The boiling point of a liquid is the temperature at which the vapor pressure of that liquid equals the pressure surrounding the liquid (or the external pressure/atmospheric pressure) and the liquid changes into a vapor state.

So, the answer is $external or atmospheric pressure$ .

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Q. Assertion :The normal boiling point of water is

100^{\circ} C

and standard boiling point of water is

{99.6}^{\circ} C

. Reason: The temperature at which vapour pressure of liquid is equal to the external pressure is called boiling temperature at that pressure.

Q. why it is said that boiling of a liquid occurs at the temperature at which its vapour pressure becomes equal to the atmospheric pressure ?

Q. Boiling point is the temperature at which the vapor pressure becomes equal to atmospheric pressure. If true enter 1 else 0.

Q. What is vapour pressure ??
Can we tell the boiling point as temperature during which the vapour pressure is equal to the atmospheric pressure??

The normal boiling point of a liquid is that temperature at which vapour pressure of the liquid is equal to:

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