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Whoa (lemmynsfw.com)

submitted 2 months ago by [email protected] to c/[email protected]

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[–] [email protected] 1 points 2 months ago (2 children)

When water turns to ice it increases about 9% in volume but ice weighs about 9% less than the water.

[–] [email protected] 7 points 2 months ago (2 children)

Wouldn't the mass remain the same, it's the density that drops and that is why it floats

[–] [email protected] 2 points 2 months ago* (last edited 2 months ago) (1 children)

Imagine believing that relatively subtle changes in temperature change the mass of a quantity of mass.

[–] [email protected] 1 points 2 months ago (1 children)

However, ice is less dense than liquid water, a property that is unique to water. Having a lower density means that ice floats when placed in liquid water. When water freezes, it occupies more space than in its liquid form because its molecules expand. Therefore, if we have 1 liter of ice and 1 liter of water, the water will weigh more because it is denser.

https://www.worldatlas.com/science/do-water-and-ice-weigh-the-same.html

[–] [email protected] 3 points 2 months ago (1 children)

Isn't that just an explanation of density? When you freeze some water it will still have the same mass, just a slightly higher volume. As the density is lower.

[–] [email protected] 1 points 2 months ago

Where does the 0.81% of the original mass disappear?