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प्रश्न
Give reasons for the following:
When boiling water is poured into a glass bottle, it generally cracks.
उत्तर
When boiling water is poured into a glass bottle, it generally cracks because on pouring hot water in the bottle the inner surface heats up and expands more as compared to its outer surface. This unequal expansion between the two surfaces causes a strain and the bottle cracks.
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संबंधित प्रश्न
Explain with the help of formulae the expansion coefficients of liquid and gas.
Explain the following:
Why does not a Pyrex tumbler crack when hot water is poured in it?
A round bottom flask containing coloured water, filtered with a stopper and a narrow glass tube is shown in the following diagram. What will happen to the water level X marked in the tube when it is placed in a hot water bath? Give a reason for your answer.
For a given heat in liquid, the apparent expansion is more than that of real expansion.
Explain the experiment of measuring the real and apparent expansion of a liquid with a neat diagram.
