Reason the water expands when it freezes

Monday, 23 October 2017

Why the water expands when it freezes?

Air mengembang ketika membeku

Most of the liquid will shrink solid solids. Will, the air even expands when it freezes. This characteristic is caused by the form of hydrogen bonding in the bonds of air molecules. The lower the temperature, the molecule becomes slower so that more hydrogen bonds. Finally, freezing time - at O0 C - there was a pattern associated with structure and structure.

Therefore, more escalation. The development of air when frozen with various kinds. For example, the air entering the rock gap, freezes, the volume is enlarged and creates strong pressure. Over time this strong pressure can cause cracks and eventually the rock will break. Thus, frozen air is also the cause of erosion.

        Because the ice formed in rivers or lakes is lighter than before freezing, then the ice does not drown, but still floats on the surface of the water. The ice will gather on the surface and freezing takes place from the surface down. The ice surface tends to isolate the water beneath it, protecting it from the effect of freezing temperatures. The thicker the ice, the greater its insulating power.

      Water will not freeze completely unless it is shallow. That is why plants and aquatic animals can survive at freezing temperatures. The fact that water only froze on its surface only, has an important influence on climate.

Labels: Chemistry, Education

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