write one advantage of mercury barometer over
water barometer.
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Mercury is commonly used in barometers because its high density means the height of the column can be a reasonable size to measure 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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Answer:
Mercury is commonly used in barometers because its high density means the height of the column can be a reasonable size to measure 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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