Question

if air is a poor conductor of heat ,why do we not feel warm without clothes?

Answer 1

Given below are the reasons:

1) Air is not insulator of heat. It is just poor conductor of heat. A small amount of heat is transferred to surrounding air from body.

2) Without clothes, we are in more contact with air. Now sweat evaporates fastly and produces evaporative cooling.

3) By using clothes we trap a layer of air more or less precisely which absorbs body heat and thus no more heat transfer takes place from body. Thus we feel relatively warmer in clothes.