A small amount of air is introduced into the vacuum above the mercury in a mercury barometer tube. The mercury level goes down because the air molecules - SchoolNGR

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A small amount of air is introduced into the vacuum above the mercury in a mercury ...

A small amount of air is introduced into the vacuum above the mercury in a mercury barometer tube. The mercury level goes down because the air molecules

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Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE

A Heat the mercury and make it expand
B Increase the pressure above the mercury.
C Cool the mercury and make it contract.
D Decrease the pressure above the mercury

Correct Answer: Option B

Explanation:

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