Why a closed balloon filled with helium gas rises in air?
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Answer:
The balloon thus weighs less than the air displaces by its volume .Because helium has a lower molar mass than the average year molecules, the helium atoms are in faster motion.
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Answer:HELLO MATE , HOPE IT HELPS U
Explanation:
Because helium has a lower molar mass than the average air molecules, the helium atoms are in faster motion. This means that the temperature INCREASES . Hot gases tend to rise.
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