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प्रश्न
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उत्तर
Three advantages of using mercury as a thermometric liquid:
(i) Mercury is a good conductor of heat.
(ii) Mercury has a high coefficient of expansion thus is sensitive to the smallest change in temperature.
(iii) Freezing points is very low and the boiling point is high.
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संबंधित प्रश्न
A longer rod expands ........... than a shorter rod on being heated to the same temperature.
What do you understand by thermal expansion of a substance?
State three factors on which depend the linear expansion of a metal rod on heating.
In the ball and ring experiment, if the ball after heating is left to cool on the ring for sometime, the ball again passes through the ring. Explain the reason.
State one application of thermal expansion of liquids.
Describe an experiment to showthat air expands on heating.
Solids ______ on heating and ______ on cooling.
- Assertion: Gas is highly compressible than solid and liquid
- Reason: Interatomic or intermolecular distance in the gas is comparably high.
How solids are expanded on heating?
When the vibrations move from one molecule to another molecule heat will flow.
