Join 60,000+ competitive exam aspirants
Cotton clothes are preferred in summer season because:
cotton does not absorb sweat
cotton is unable to expose sweat to the atmosphere for evaporation
cotton is a good absorber of water and exposes sweat to atmosphere for evaporation
cotton is a bad absorber of water and exposes sweat to atmosphere for evaporation
cotton is a good absorber of water and exposes sweat to atmosphere for evaporation
Cotton clothes are preferred in summer because cotton is a natural absorbent material with high porosity. It absorbs sweat from the skin and exposes it to the atmosphere, facilitating faster evaporation.
Cotton clothes are preferred in summer because cotton is a natural absorbent material with high porosity. It absorbs sweat from the skin and exposes it to the atmosphere, facilitating faster evaporation.
Think of cotton as a sponge that pulls water off a wet surface and spreads it out so the air can dry it up faster, keeping the original surface cool and dry.
Q=m├ЧLvтАЛ тАФ where Q is the latent heat absorbed, m is the mass of evaporated sweat, and LvтАЛ is the latent heat of vaporization of water.
The principle behind this is evaporative cooling. When sweat evaporates from the skin, it absorbs latent heat of vaporization from the body, leading to a cooling sensation. Cotton, being a good absorber of water, draws sweat away from the skin surface and increases the surface area for evaporation to occur into the surrounding air.
Cotton fibers have high capillary action, helping draw sweat away from the body.
Evaporation is an endothermic process, meaning it consumes heat.
Loose-fitting cotton clothes also allow better air circulation, further enhancing evaporation.
Increases comfort in hot and humid weather.
Prevents skin irritation by keeping skin relatively dry.
Promotes natural thermoregulation of the body.
Standard choice for summer wear in tropical climates.
Preferred fabric for sportswear and baby clothing.
Option A is incorrect because cotton is hydrophilic (water-attracting).
Option B is incorrect because cotton's porous structure facilitates, rather than hinders, exposure for evaporation.
Option D is incorrect because cotton is known as a highly absorbent natural fiber.
C is correct тАФ cotton is a good absorber of water and exposes sweat to atmosphere for evaporation.
Always remember that evaporation causes cooling; this is the same principle behind the working of earthen pots (matkas) which keep water cool in summer.