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Question
Write a short note.
Dew point temperature
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Solution
- When unsaturated air (of specific volume) at a certain temperature is taken and its temperature is decreased, a temperature is reached at which the air becomes saturated with vapour. This temperature is called the dew point temperature.
- Relative humidity of air at dew point is 100%.
- Dew drops, condensation of water droplets on the surface of water bottle taken out from refrigerator are some visible examples of air having reached dew point temperature.
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RELATED QUESTIONS
The vapour content in the air is measured using a physical quantity called ______.
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Relative humidity greater than 60% : humid air : : relative humidity less than 60% : _______
What is a dew point temperature?
What does the existence of drops of water on the leaves of a tree in the morning indicate?
The dew point temperature does not depend on the amount of vapor in the air.
The unit of absolute humidity is kg/m3.
Drops of water can be seen accumulating on the glass of vehicles in the early hours of winter.
Geeta observed a white trail at the back of aeroplane in a clear sky to answer the question from this incident given below.
- What will be the effect of relative humidity of the air surrounding the plane?
- What will be the effect of relative humidity of the air surrounding the plane is low?
- When the air is dry and humid?
How much is the relative humidity at the dew point?
Differentiate between: Absolute humidity and relative humidity.
How do we feel about air in each of the following conditions?
- Relative humidity is more than 60%.
- Relative humidity is less than 60%.
