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Mercury is being used as fluid in a manometer, what property of mercury mainly allows the manometer column to be shorter when compared to other fluids?

Mercury is being used as fluid in a manometer, what property of mercury mainly allows the manometer column to be shorter when compared to other fluids? Correct Answer Its high density

Explanation:

The liquid used in manometers should have high density so that the height of the column can be reduced. 
Because the manometers are used for high-pressure measurement, so it is important to make the column height in a practical limit.

Most of the case, for gauge pressure measurements, Mercury is widely used as manometric fluid because

  • It has non-evaporating quality under normal conditions, sharp meniscus and stable density.
  • It is generally used in manometers for measuring all pressures except the smallest ones.
  • For some pressure differences and low-level vacuum, water can be considered as a working fluid in the manometer.
  • A manometer is one of the most accurate devices for measuring pressure in the lower ranges.
  • ​Since manometers are so accurate, they are often used as calibration standards.

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