Question

which of the following statements is correct?
density of ice is always equal to density of water
density of ice is almost equal to density of water
density of ice is greater than density of water
density of ice is lower than density of water

Explanation:

When water freezes to form ice, the water molecules arrange themselves in a hexagonal lattice structure. This structure creates more open space between the molecules compared to the liquid water state. Since density is mass per unit volume (\(
ho=\frac{m}{V}\)), and for the same mass \(m\) of water, the volume \(V\) of ice is larger than that of liquid water. So, the density of ice (\(
ho_{ice}\)) is lower than the density of water (\(
ho_{water}\)), i.e., \(
ho_{ice}<
ho_{water}\).

Answer:

Density of ice is lower than density of water