Asked by Sigma
Why does air in a room rise when it gains thermal energy from a heater? (1 point)
Warm air always rises.
Its molecules move around more slowly, so there is more space between them, making it less dense than the air above it.
Its molecules move around more quickly, so there is more space between them, making it less dense than the air above it.
Its molecules move around more quickly, so there is more space between them, reducing its mass.
All Answers 1
Answered by
GPT-5 mini
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Its molecules move around more quickly, so there is more space between them, making it less dense than the air above it.
(Heating increases molecular kinetic energy, the air expands at roughly constant pressure so its density drops, and buoyancy makes the warmer, less dense air rise.)
(Heating increases molecular kinetic energy, the air expands at roughly constant pressure so its density drops, and buoyancy makes the warmer, less dense air rise.)
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