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Heat — PHYSICS STD 9 — Question

ICSE BoardEnglish MediumSTD 9PHYSICSHeat2 Marks
Question
State three properties of a liquid which make it suitable to be used in a thermometer.
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Answer

Three properties of a liquid which make it suitable to be used in a thermometer are:
(i) The substance should have a high coefficient of expansion so that it is sensitive to the smallest change in temperature
(ii) The substance should have uniform expansion all over its entire volume
(iii) The substance should have minimum specific heat so that it absorbs minimum heat from the body under measurement.

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