Question

state what will happen to the volume of water when it is heated from 4 degree centigrade to 8 degree centigrade​

Answer 1

Answer:

Water is at its most compact form at 4 degrees C so it expands a tiny amount when it either freezes or warms up. A volume of cold water will expand from 4 C and the change in meniscus may indicate an increase in volume otherwise almost unnoticeable without accurate volume measuring tools either with a bit of cooling or heating.

In practice ice floats better because in forming its crystalline structure the molecules move apart into an array or matrix making it less dense than the liquid form. As it melts that orderliness of the solid structure is lost and the inactive cold water molecules approach each other without spare energy to hold their own space. As it warms up the activity of the molecules of water start to establish an more regular or even density that remains more or less uniform until the temperature rises towards next phase change event.

Explanation:

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