Question

3. Why are liquids used in a thermometer?​

Answer 1

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• The liquid used in thermometers has moderate coefficient of expansion so as to measure body temperature where as solids have very low and gases have very high coefficient of expansion.
• It's used in thermometers because it has high coefficient of expansion.

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Answer 2

• The liquid used in thermometers has moderate coefficient of expansion so as to measure body temperature where as solids have very low and gases have very high coefficient of expansion. ... ... It's used in thermometers because it has high coefficient of expansion.