Question

water is heated from 0 degree Celsius to 4 degree Celsius.Will it expand?​

Answer 1

When ice is heated from 0 to 4 degrees C, it actually contracts. The water molecules get closer together and the water occupies less volume. However, above 4 degrees C water expands as it is heated like most other liquids. In general though, heat makes solids, liquids, and gasses expand.

Answer 2

Answer: No it will not expand rather contract. But when temperature increases from 4 degree celsius it will start expanding

Explanation:

Though liquids expand when heated, water shrinks between 0°C and 4°C because water reaches its greatest density at 4°C. Water has a maximum density at 4 degrees Celsius, thus it will compress as it approaches that temperature from either side. While the heated side seems logical, with each molecule having a larger average energy and obtaining greater distance between them, the cold side is not. Between around 4 degrees Celsius and freezing, the water molecules arrange into a lattice that creates solid ice. This lattice structure has more molecular spacing than liquid water, which accounts for ice's lower density. Even though the average temperature of the bulk material is still fairly high, certain molecules have low enough energy to form the bonds that will form the solid (like 4 degrees C). As these bonds form, the distance between molecules grows, and the average density of the bulk substance (liquid) rises.

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