Why should frozen water expand. what is the machanism behind this.?

Answer 1

OK the ice expands b/c of the molecules have frozen that means the molecules move less alot less there for needing more space (all neat).

exp. 52 cards all organized,
then mess them up have them over lap, make it look very busy.


the the ice is in the form of water the molecules they are warmer so they can move around. causing overlapping of electrons causing the water to take up less space.

Answer 2

Yes I Can.The molecules of water fit snugly together normally but when frozen they change shape and no longer fit together . It's like dumping a lot of square cubes into a container. There will be spaces inbetween. Thats why water expands when frozen.

Answer 3

It's because ice is a crystal. The water molecules spread out to form the crystal, so the ice actually winds up less dense than water.

Answer 4

It all has to do with states of matter......in liquids the particles move freer than those in solids but are more closely packed than those in gases.....solid particles are very close together which accounts for their definite shape. Freezing liquid H2O causes the fairly spaced particles to come close together; this causes the substance to appear denser and expand in size.....

Answer 5

water is one of the few substances which has a bigger volume in its solid state than in its liquid state..this can be calculated uisng the ideal gas equation by using 2 points in the phase diagram of water...at constant pressure,one point each before and after the solid-liquid boundary..you can obtain a bigger value for volume for water in the solid phase.

Answer 6

I have often wondered about that.

I can hardly wait to see what kind of replies you will get!