Question

why is mercury preferred in barometer

Answer 1

bcozz its high density means the height of the column can be a reasonable size to measure atmospheric pressure .....

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Answer 2

Mercury is commonly used as barometers because it's high density means the height of the column can be a reasonable size to ! esure atmospheric pressure. A barometer using water, for instance,would need to be 13.6 times taller than a mercury barometer to obtain the same pressure difference.

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