Saturated and Unsaturated Vapour
Saturated and Unsaturated Vapour: Overview
This topic covers concepts such as Humidity, Dew Point Temperature, and Relative Humidity.
Important Questions on Saturated and Unsaturated Vapour
What is vapour pressure and what causes it?

Vapour that remains in contact with its liquid surface within a closed space is called _____.
(Choose from: saturated vapour/unsaturated vapour)

_____ are not seen on the leaves of tall trees.
(Choose from the following: Snows/Dews)

Higher humidity of air means _____ saturation.
(Choose from: quick/slow)

_____ is the temperature at which the air becomes saturated with its own moisture.
(Choose from: melting point/Dew-point)

In which season is the quantity of moisture in the air high?

The Dew Point temperature is always higher than the atmospheric temperature.

Select the correct relation out of the following.

The relative humidity at dew point is _____

The ratio of actual mass of vapour content in the air for a given volume and temperature to that required to make the air saturated with vapour at that temperature is called the _____.

Which factor is responsible for sweaty feelings on a hot day? (Choose from wind speed or humidity).

Differentiate between relative humidity and dew point temperature.

The vapour content in the air is measured using a physical quantity called _____.

Which of these places is most likely to have high humidity? Mark the correct answer. Give reasons for your choice.

During a cricket match, the commentators sometimes talk about the 'dew factor' which will make the ball slippery and difficult to grip. At what time of the day is this most likely to occur? Mark the correct answer.

Humidity is measured in percentage using this instrument.

The amount of water vapour present in the air is called humidity.


The amount of water vapour present in the air is called _____.

Water vapour in air is called humidity.
