does water weigh more when frozen?

Question

water weight solid liquid

Answer 1

actually the density of water decreases when it changes state how ever volume also decreases proportionately hence the mass (hence weight) remains constant

Answer 2

Please don't listen to several replies which said that ice floats because of trapped air bubbles. That is just plain wrong. Most substances are denser in their solid form than in their liquid form because their molecules have less kinetic energy and therefore move closer together when solid. So for most substances the solid form is denser than the liquid and the solid will sink in the liquid. Water though is different because of the unique shape of it's molecule. The water molecule is "Mickey Mouse" shape, the large oxygen atom being the face and the two smaller hydrogen atoms being the ears. It is also polar. The two positive hydrogens are on one side and the negative oxygen on the other. At this point I wish "Answers" had a drawing program. It doesn't, so I'll just have to describe the following. When water is cooled it contracts just like anything else. However, at about 4 degrees above freezing something happens. Because of their shape, and due to the attraction of negative oxygen atoms of one molecule and positive hydrogen atoms of the adjoining one, the atoms open up into a hexagon shaped crystal. This is why snowflakes are six sided by the way. The atoms of the solid (frozen) water actually are further apart than they were when they were liquid. Since a given size sample of frozen water has fewer molecules (since they are further apart) frozen water (ice) is less dense and floats in liquid. True, some air might be trapped in the ice as it freezes but ice would still float in water if all the air were expelled.

Answer 3

There is no change in weight, but the density is reduced because water expands when it freezes, This has nothing to do with air trapped, because even air-free water will expand on freezing. The reason for the expansion is that the frozen water molecules form a crystal lattice with defined spacings between molecules that are more distant than the average distance between molecules when the water is liquid.

Answer 4

When water is cooled, say from room temperature down to its freezing point, its density, i.e. its weight or mass per unit volume increases steadily until it reaches a temperature of 4 deg C when this process reverses, i.e. the density begins to decrease and continues until the liquid is completely frozen. Generally, therefore, water in liquid form is denser than ice in frozen form, with density being defined as weight/mass per unit volume.

Answer 5

It does not. It weighs an identical, yet its volume expands while it freezes. So the density of liquid water is going from Rho = M/v to M/V = rho < Rho while it freezes. That effects because of the fact the liquid volume v < V the frozen volume for an identical mass M. As weight W = Mg and M and g are unchanged via freezing water, the weights till now and after freezing stay an identical. notice: the final theory of relativity, does in actuality teach that a heated physique will weigh extra effective than a cold one, all different issues equivalent. yet it is an exceedingly very small distinction and not the real rationalization for ice floating on precise of liquid water. Ice floats because of the fact it may displace is weight Mg of water without being totally immersed. it is while W = Mg = Rho g u = B and u is the quantity of ice decrease than water the place u < V and B is named the buoyancy of ice. in case you probably did not word Rho g u = the burden of the water displaced via the ice.

Answer 6

No

the weight remains the same, although water traps air bubbles with in it's frozen structure while freezing, thus ice floats on top of water making it buoyant.

Answer 7

Ice is less dense than water because it has air trapped in it. Ice floats in water.

Answer 8

No; What change is the density and the volume

The mass remains unchanged

Answer 9

No. In fact, the density decreases -- that's why ice floats.

Answer 10

no....the volume is bigger in the solid stat