T2 CH1 Heat and Temperature — Science STD 7 — Question
Tamilnadu BoardEnglish MediumSTD 7ScienceT2 CH1 Heat and Temperature2 Marks
Question
Why mercury or alcohol is used in thermometers?
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Answer
Mostly Alcohol and Mercury are used in thermometers as they remain in liquid form even with a change of temperature in them. A small change in the temperature causes change in volume of a liquid. We measure this temperature by measuring expansion of a liquid in thermometer.
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