Those who will answer will get 50 points.
Answers
☯ AnSwEr :
(1).
Desert cooler cools better on a hot dry day because on the hot day temperature is too high due to which there is less humidity in air which helps in the better evaporation and due to high rate of evaporation desert cooler gives better cool air.
(2).
Water is cool inside the earthen pot beacause earthen pot has many pores through which the water is evaporated. The heat energy of water is utilised in the evaporation process.
(3).
Our palm feels cold when we put some acetone or perfume on it because acetone and perfume are highly volatile in substance. They evaporate very fast. While evaporating they absorb the heat energy of our palm and then evaporate. Which causes coolness on our palm.
(4).
We are able to drink hot tea from saucer more easily than a cup because a cup has smaller area then the plate & plate has also larger area then the cup. The Surface is directly proportional to the heat.
(5).
We should wear light colour cotton clothes because in the summer we easily get sweating easily and cotton clothes can absorb the emwater or sweat easily rather than other type of clothes such as jute.
Answer:
Desert cooler cools better on a hot dry day because on the hot day temperature is too high due to which there is less humidity in air which helps in the better evaporation and due to high rate of evaporation desert cooler gives better cool air.
(2).
Water is cool inside the earthen pot beacause earthen pot has many pores through which the water is evaporated. The heat energy of water is utilised in the evaporation process.
(3).
Our palm feels cold when we put some acetone or perfume on it because acetone and perfume are highly volatile in substance. They evaporate very fast. While evaporating they absorb the heat energy of our palm and then evaporate. Which causes coolness on our palm.
(4).
We are able to drink hot tea from saucer more easily than a cup because a cup has smaller area then the plate & plate has also larger area then the cup. The Surface is directly proportional to the heat.
(5).
We should wear light colour cotton clothes because in the summer we easily get sweating easily and cotton clothes can absorb the emwater or sweat easily rather than other type of clothes such as jute.