Q. 6 C4.2( 54 Votes )

Explain the following:

In cold regions in winter, the rocks crack due to anomalous expansion of water.

Class 10th MHB - Science and Technology Part-1 5. Heat

Answer :

Anomalous expansion: Water contracts when heated from 0^° to 4^°C (instead of expanding) and water expands when cooled from 4^°C to 0^° This expansion of water from 4^°C to 0^° C is called anomalous expansion of water.

(i) In colder seasons, the temperature drops to 4^°C.This means water starts to expand.

(ii) As there is no place for the water to expand inside the rocks, it exerts a high pressure on the rocks.

(iii) As a result, the rocks break.

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Explain the following:In cold regions in winter, the rocks crack due to anomalous expansion of water.

Explain the following:

In cold regions in winter, the rocks crack due to anomalous expansion of water.