Hot water means the water molecules has attained energy from the temperature applied and hence their kinetic energy increases. Thus movement is possible for water molecules in hot water than cold water.
does molecules move in cold water
Even in cold water sugar will dissolve eventually, but it does dissolve faster in hot water. Hot water molecules move faster than cold water molecules and therefore can more easily break sugar molecules out of solid sugar and into solution.
Water expands at the equator because it is warm there, and warm molecules expand. Warm molecules expand and cold molecules decrease in size.
because cold water molecules move slower at colder temperature.
Solubility of gases decreases with water temperature because the water molecules have less affinity for the dissolved gas molecules. So more molecules will leave the water than are entering it.Conversely, solution of solids in liquids increases with temperature.
does molecules move in cold water
If you have the same volume of both then there are in cold water more molecules.
The molecules in hot water have more kinetic energy than those in warm or cold water, and thus makes it easier for those molecules to escape into the vapor phase (evaporate).
At higher temperatures waer molecules at the surface of the liquid have more energy and is more simple to escape into atmosphere.
Because as the water molecules get heated by the sun they start to move faster and faster until they escape from the liquid and become a gas (water vapour). On a cold day or a dau without sun, this process is slower becasue the molecules move slower and find it more difficult to escape from the liquid.
the water molecules get cold and expand and turn into ice
Water expands when it is cold because the water molecules found in water expand in the cold.
The molecules in warm water are moving quicker, meaning that the hydrogen bonds between the molecules are breaking very quickly whereas the molecules in cold water are moving much slower.
Of course, hot water molecules, having more kinetic energy.
Hot water molecules move a lot faster han cold water molecules because they have a higher kinetic energy due to the heat.
Even in cold water sugar will dissolve eventually, but it does dissolve faster in hot water. Hot water molecules move faster than cold water molecules and therefore can more easily break sugar molecules out of solid sugar and into solution.
You may want to frame this question in this manner, "Why does cubic unit of cold water have more molecules than same cubic unit of hot water" This is so because heat causes movement in molecules and malkes them move apart. Hence the hotter the water, the further apart the molecules. Therefore, cold water has more molecules than hot water of same unit.