When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.
In liquids the particles have less force of attraction between them when compared to solids and hence they can move. So generally they occupy more volume.
Now in solids the particles are tightly packed with no movement so they occupy less volume when compared to liquids. Here Ice is solid and water is liquid. If volume increases as mass remains constant then density is less and if volume decreases then density is more. Ice has more volume when compared to water because as water freezes it occupies more space so it's density is obviously less than density of water.
Answers & Comments
Answer:
When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.
Explanation:
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Explanation:
We know that density = mass / volume
In liquids the particles have less force of attraction between them when compared to solids and hence they can move. So generally they occupy more volume.
Now in solids the particles are tightly packed with no movement so they occupy less volume when compared to liquids. Here Ice is solid and water is liquid. If volume increases as mass remains constant then density is less and if volume decreases then density is more. Ice has more volume when compared to water because as water freezes it occupies more space so it's density is obviously less than density of water.