If you have the same volume of both then there are in cold water more molecules.
Yes, because the higher the temperature, the faster and more spread out the molecules, therefore making hot water less dense than cold water.
Actually you are wrong, its vise versa, hot water rises and cold water sinks. This is because when water molecules gain energy, they become hot. Molecules try to move away from one another. And this leads to reduction in density. Since density of water reduces as it becomes hot, how water moves up and cold water sinks down.
gas is more soluble in cold water. In hot water, the molecules are farther apart, leaving room for gas to escape. That's why it's LESS soluble, and why hot water makes clearer ice cubes. Cold water molecules are close together, trapping in the gas and dissolving it. We keep pop in the freezer so the carbonation will last longer.
hot water molecules move faster with food coloring.you can experiment it with the help of following steps:-Fill the glasses with the same amount of water, one cold and one hot.Put one drop of food coloring into both glasses as quickly as possible.Watch what happens to the food coloring.If you watch closely you will notice that the food coloring spreads faster throughout the hot water than in the cold. The molecules in the hot water move at a faster rate, spreading the food coloring faster than the cold water molecules which mover
No,boiling water does not have oxygen . Cold water molecules move slowly meaning there is space between the molecules for more oxygen to dissolve. Hot water molecules move rapidly meaning the space between the water molecules is less avalible for the oxygen molecues to dissolve into.
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.
In hot water the molecules vibrate faster than cold, resulting in the same number of molecules taking up a larger space. This means that hot water is less dense than cold water, and thus floats above the cold water.
Raisins plump up more quickly in hot water because the molecules in hot water move quicker than molecules in cold water so the hot water molecules diffuse quicker into the raisin.
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.
Cold water has a higher density than hot water. As water cools, its molecules come closer together, increasing its density. Conversely, hot water molecules are more spread out, resulting in lower density.
hot water because the molecules are moving faster
In a hot cup of water, the water molecules have higher kinetic energy and are moving faster than in a cold cup. This results in the water molecules being more spread out and having increased motion, leading to a less structured arrangement compared to cold water.
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.
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.
When a dye is added to hot water, the molecules move faster and spread out quickly, allowing the dye to disperse more rapidly. In cold water, the molecules move slower, hindering the spread of the dye. The increased speed of molecules in hot water causes a quicker and more even distribution of the dye compared to cold water.
Hot water typically consists of H2O molecules and salt. Cold water with salt is also made up of H2O molecules and dissolves the salt in its solution.