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प्रश्न
Give reasons for the following:
In cold countries, water pipes burst in winter.
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उत्तर
In cold countries water pipes burst in winter because the water has maximum density at 4°C and, due to anomalous expansion of water, it expands when the water is cooled to a temperature below 4°C
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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.
State one application of thermal expansion of liquids.
An iron washer is heated. State the effect on its mass.
An iron washer is heated State the effect on its density.
Give scientific reason.
The telephone wires which sag in summer become straight in winter.
Define the following term:
Coefficient of cubical expansion
Give reason for the following
An ordinary glass bottle cracks when boiling water is poured into it, but a borosilicate glass bottle does not.
If you heat a circular disk with a hole, what change do you expect in the diameter of the hole? Remember that the effect of heating increases the separation between any pair of particles.
How solids are expanded on heating?
What type of glassware is used in laboratories? Why?
