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प्रश्न
What difference do you think heating the solid will make in their molecules?
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उत्तर
- When we heat solids the vibrations and movement of molecules will increase.
- The temperature of the object increases.
- The distance between molecules will increase.
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संबंधित प्रश्न
Equal volumes of different liquids expand by a different amount when they are heated to the same rise in temperature.
Kerosene contracts on heating.
Two identical rods of copper are heated to different temperatures — one by 5°C and the other by 10°C. Which rod will expand more?
One rod of copper and another identical rod of iron are heated to the same rise in temperature. Which rod will expand more? Give reason.
Give scientific reason.
An ordinary glass bottle cracks when boiling water is poured into it, but a borosil glass bottle does not.
Give scientific reason.
The telephone wires which sag in summer become straight in winter.
At what temperature the pure water has (a) maximum density (b) minimum volume?
What is meant by thermal expansion?
A bimetal strip is shown in the below diagram before heating. Draw a diagram to show how it bends on heating and on cooling.
