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Question
why does hot air rise up and expand?
why does hot air rise up and expand?
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Solution
The molecules of hotter air are more energetic and thus are farther apart compared to cooler/normal air. Due to this, the are less denser and thus comparatively lighter than cooler/normal air. Thus lightness gives hotter air a lift and it tends to rise.
The molecules of hotter air are more energetic and thus are farther apart compared to cooler/normal air. Due to this, the are less denser and thus comparatively lighter than cooler/normal air. Thus lightness gives hotter air a lift and it tends to rise.
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