Question:

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 \( 60\% \). 

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When relative humidity is high, the air feels warmer because sweat doesn't evaporate as efficiently, while low humidity makes the air feel cooler but can cause dryness.
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Solution and Explanation

  • When the relative humidity is more than \( 60\% \), the air feels more humid, and we may feel uncomfortable, especially in hot weather. Our body's ability to cool itself through evaporation (sweating) becomes less efficient, making us feel warmer than the actual temperature.
  • When the relative humidity is less than \( 60\% \), the air feels drier. In such conditions, we may experience dryness in the skin, eyes, and throat, especially in extreme cases. Evaporation is more effective, and we may feel cooler than the actual temperature.

Relative humidity is the amount of water vapor present in the air compared to the maximum amount it can hold at a given temperature. - In high humidity (more than \( 60\% \)), the air retains more moisture, making it harder for sweat to evaporate, thus making us feel hotter and sticky. - In low humidity (less than \( 60\% \)), the air feels dry, and moisture evaporates more quickly from our skin, which can make us feel cooler but also potentially dehydrated.

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