why fire goes upward even though gravitational force acts upon it?
Asked by Vinothini R.
26th November 2011,
6:50 AM
Answered by Expert
Answer:
A flame consists of gases so hot they glow yellow, orange, and red. Hot gasses expand and become less dense than the surrounding air. Therefore, the flame is lighter than an equal volume of air.
A flame goes up much as a submerged cork bobs to the water surface when released. The flame is lighter than air and the airs buoyant force is, therefore, strong enough to push the flame up.
A flame goes up much as a submerged cork bobs to the water surface when released. The flame is lighter than air and the airs buoyant force is, therefore, strong enough to push the flame up.
Answered by Expert
27th November 2011,
11:31 PM
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