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Temperature is a measure of molecular motion. Fast molecules are hot. Molecules that move slowly can always be "heated" and then they will move faster and thus will be hot.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoOn the molecular level, that's what heat is; it's the average molecular speed. So a hot water molecule is hot BECAUSE it is moving faster than cold water molecules.
Wiki User
∙ 9y agoHeat adds energy to the molecules and the energy causes them to speed up. Cold water doesn't contain doesn't have kinetic energy so they move slower.
Wiki User
∙ 14y agobecause in cold water there not doing anything and in hot water there being forced to move.
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Why does the soot particles move faster in warm water than in cold water?
The water molecules in warm water have greater kinetic energy, making them move faster.
What happens to water molecules when they are heated?
Like all molecules, a molecule of H20 is in constant motion; 'hot' molecules move faster than 'cold' molecules. If the molecules move slowly enough the substance appears stationary to us (frozen water) and if they move quickly enough they will expand to fill their container (vapor or gas water.)
What motion do molecules move when in cold water?
does molecules move in cold water
Why does not sugar dissolve in cold milk?
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.
Which do molecules move faster-hot or cold water?
Molecules move faster when hot water then in cold. Temperature is a measure of the average kinetic energy of the atoms. Molecules move faster in hot water because the heat is giving the molecules more energy. Molecules move slower in cold water because heat has/gives energy and when something is cold it has very little heat. So there is very little energy. So there is very little movement. I have a science quiz tommorrow, and this was VERY helpful. :D
Do hot and cold water molecules move at the same speed?
Hot water molecules move a lot faster han cold water molecules because they have a higher kinetic energy due to the heat.
Why does salt dissolve faster in hot water rather than cold?
In hot water the water molecules are moving at a faster rate than they move in cold water. The faster moving molecules hit the salt molecules with greater force and knock them away from the other salt molecules faster. That way the salt molecules dissolve in the water quicker.
Why does the soot particles move faster in warm water than in cold water?
The water molecules in warm water have greater kinetic energy, making them move faster.
What happens to water molecules when they are heated?
Like all molecules, a molecule of H20 is in constant motion; 'hot' molecules move faster than 'cold' molecules. If the molecules move slowly enough the substance appears stationary to us (frozen water) and if they move quickly enough they will expand to fill their container (vapor or gas water.)
What motion do molecules move when in cold water?
does molecules move in cold water
Why does not sugar dissolve in cold milk?
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.
Does cold water drain faster than hot water?
no hot water will drip faster than cold water.This is because the molecules in hot water move around faster than in cold water. This makes it easier for molecules in hot water to slip right past other
Does hot water or cold water particles move faster?
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
Why do antacids dissolve faster in warm water?
It has more energy in the form of water molecules that vibrate and move around faster than those in cold water.
Do molecules move faster with heat or with cold?
heat
Does salt dissolve better in hot or cold?
Hot waterWhen substances have a high temperature, they have more energy. The more energy molecules have, the faster they move. The molecules in hot water move faster than cold water because of the higher energy. Because the molecules of hot water move faster, they can more easily break apart other molecules of a different substance when they come into contact. The fast moving water molecules can break apart the bonds between the salt crystals so they become dissolved into the water.
Does cold water dissolve salt?
When substances have a high temperature, they have more energy. The more energy molecules have, the faster they move. The molecules in hot water move faster than cold water because of the higher energy. Because the molecules of hot water move faster, they can more easily break apart other molecules of a different substance when they come into contact. The fast moving water molecules can break apart the bonds between the salt crystals so they become dissolved into the water. Therefore, salt water can only dissolve in hot water.
