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प्रश्न
State one application of thermal expansion of liquids.
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उत्तर
APPLICATION OF THERMAL EXPANSION OF LIQUIDS: An important application is mercury thermometer or alcohol thermometer.
When the bulb of the thermometer is kept in contact with a hot body the mercury expands and the level of mercury rises in the capillary tube.
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संबंधित प्रश्न
What do you understand by thermal expansion of a substance?
A metal plate is heated. State three factors on which the increase in its area will depend.
Describe an experiment to show that same volume of different liquids heated to same rise in temperature expand by different amounts.
100 ml of each of the following liquid is heated from 10°C to 50°C. Which will expand more : (a) water (b) benzene (c) alcohol?
Give scientific reason.
An ordinary glass bottle cracks when boiling water is poured into it, but a borosil glass bottle does not.
Define the following term:
Coefficient of cubical expansion
What difference do you think heating the solid will make in their molecules?
Explain thermal expansion with suitable examples.
What type of glassware is used in laboratories? Why?
