Question

give reasons, A white trail may be seen behird high flying aircraft ?

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Answer 1

Answer:

Contrails are formed when vapor from the engines freezes. The trails left behind by planes are officially called contrails, short for concentration trails. They form a bit similarly to how the breath you exhale can condense into vapor on a cold day.Jun 27, 2016

Explanation:

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Answer 2

Answer:

Jets leave white trails, or contrails, in their wakes for the same reason you can sometimes see your breath. The hot, humid exhaust from jet engines mixes with the atmosphere, which at high altitude is of much lower vapor pressure and temperature than the exhaust gas. The water vapor contained in the jet exhaust condenses and may freeze, and this mixing process forms a cloud very similar to the one your hot breath makes on a cold day.

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