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P-1 Heat — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Heat2 Marks
Question
In winter, the pipelines carrying water burst in cold countries.
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Answer

1. In cold countries, in winter, the temperature of the atmosphere falls below 0 °C. When the temperature of water falls below 4 °C, it expands. Hence, the water in pipes expands. Even if ice is formed, there is an increase in the volume.

2. As there is no room for expansion, water (or ice) exerts a large pressure on the pipes. Hence, the pipelines carrying water burst.

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