Humidity and its types discussion essay

Humidity is the amount of water vapor present in the air. Increased humidity in the air decreases the rate of exchange of heat between the skin and its surroundings. The different types of humidity are absolute humidity, relative humidity, and specific humidity:

· Absolute humidity: The water content present in the air is called absolute humidity. It is expressed in grams per kilogram or grams per cubic meter. It is defined as the ratio of the mass of water vapor to the volume of air and water mixture. Its mathematical expression is,

Don't use plagiarized sources. Get Your Custom Essay on
Humidity and its types discussion essay
Just from $9/Page
Order Essay

\Delta H=\frac{{{m}_{{{\text{H}}_{\text{2}}}\text{O}}}}{{{V}_{\text{net}}}}ΔH=



In this expression, {{m}_{{{\text{H}}_{\text{2}}}\text{O}}}m
is the mass of water vapor and {{V}_{\text{net}}}V
is the volume of mixture of air and water vapor. In the atmosphere, the absolute humidity ranges from 0 to 30 grams per cubic meter. The value of absolute humidity varies with change in the temperature of air and pressure. Volumetric humidity is defined as the mass of water vapor per unit volume.

· Relative humidity: The ratio of pressure exerted by water vapor in the mixture to the vapor pressure of water at equilibrium over a surface having pure water, at a particular temperature, is called relative humidity. It is expressed in percentage. If the percentage is high, then the humidity of the air-water mixture is high. Relative humidity helps in weather forecast by predicting the possibility of fog, dew, or precipitation. In hot summers, the increase in relative humidity hinders the evaporation of sweat from the human skin and hence, increases the temperature for humans.

· Specific humidity: The ratio of the mass of water vapor to the total mass of air is called specific humidity. It is also equal to the ratio of the mass of water vapor to the mass of dry air in a parcel of air. The amount of water vapor that is required to attain the saturation point decreases with a decrease in temperature.


Heat Index
The temperature felt by the human body when relative humidity is combined with the temperature of the air is called the heat index. The resultant temperature felt by humans is called felt air temperature. At high temperatures, the heat index is increased due to an increase in the relative humidity. The air temperature and relative humidity are combined to form the heat index, which determines the equivalent temperature that is experienced by human beings. This resultant temperature is also known as apparent temperature. If the value of the heat index is between 26°C to 32°C, then on prolonged exposure, it may lead to heat cramps. The value of the heat index between 32°C to 41°C may lead to heat exhaustion and heatstroke. Further, the value of the heat index from 41°C to 54°C is a dangerous situation as it leads to heatstroke. Above 54°C, the effects of heat index are extremely dangerous.

Place your order
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more
error: Content is protected !!
Open chat
Need assignment help? You can contact our live agent via WhatsApp using +1 718 717 2861

Feel free to ask questions, clarifications, or discounts available when placing an order.
  +1 718 717 2861           + 44 161 818 7126           [email protected]
  +1 718 717 2861           + 44 161 818 7126           [email protected]