English

What is a dew point temperature? - Science and Technology 1

Advertisements
Advertisements

Question

What is a dew point temperature?

Short Note

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.

shaalaa.com
  Is there an error in this question or solution?
Chapter 5: Heat - Answer in one sentence.

APPEARS IN

RELATED QUESTIONS

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


Vapours in air condenses to form ______.


Relative humidity greater than 60% : humid air : : relative humidity less than 60% : _______


What does the existence of drops of water on the leaves of a tree in the morning indicate?


Match the columns.

Column A Column B
1) Dry air a) 4 °C
2) Humid air b) Relative humidity 100%
3) Saturated air/Dew point temperature c) Relative humidity below 60%
4) Maximum density of water d) Relative humidity above 60%
  e) – 4 °C

The dew point temperature does not depend on the amount of vapor in the air.


Humidity relative to dew point temperature is 100%.


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.


Write scientific reason.

During winter season, we may have observed a white trail at the back of the aeroplane flying high in the clear sky or sometimes it may not get formed.


Geeta observed a white trail at the back of aeroplane in a clear sky to answer the question from this incident given below.

  1. What will be the effect of relative humidity of the air surrounding the plane?
  2. What will be the effect of relative humidity of the air surrounding the plane is low?
  3. 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?

  1. Relative humidity is more than 60%.
  2. Relative humidity is less than 60%.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×