Question

Mercury thermometer cannot be used to measure very low temperature.Justify the statement

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Answer 1

Mercury thermometers cover a wide temperature range from −37 to 356 °C (−35 to 673 °F); the instrument's upper temperature range may be extended through the introduction of an inert gas such as nitrogen.

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Answer 2

Explanation:

Because in low temperature the mercury become invisible and it's hard to see readings on thermometer or any else device.