Question

explain why dogs pant during hot summer days using the concept of evaporation​

Answer 1

Answer:

The water molecules which are present on the surface of the tongue of a dog gets evaporated while panting. This evaporation cools the area. Hence, dogs pant during hot summer days as panting promotes cooling effect and relieves them from the heat.

Explanation:

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Answer 2

Answer:

1. Dogs pant during hot summer days and get their body cooled. This cooling effect is due to evaporation. Evaporation is a surface phenomenon.

2 Temperature of a system falls during evaporation. During summer the temperature in the human body increases the temperature of the skin. As a result, the water in the sweat glands starts evaporating. Evaporation is a cooling process in which human body gets cooled.

3. Dogs don't have sweat glands. Their body is covered with hair. They have sweat glands only in their feet.

4. So by panting the water on the tongue evaporates resulting in the cooling of the dog's body