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A random motion since gas moves freely and independently, with no definite shape or size, spreading out all the molecules to occupy the limitation of space.
Source: Pearson Prentice Hall California Physical Science Textbook
And, knowledge from research, science class, home experiments, teachers and previous information from past years.
What else can I help you with?
Do air molecules move fast in hot weather or slow?
Air molecules move faster in hot weather and slower in cold weather.
What makes salt dissolve faster hot or cold water?
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.
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.)
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
Why do molecules in hot water move faster than in cold water?
The kinetic theory of matter explains that temperature is a measure of the average kinetic energy of molecules in a substance. In hot water, the molecules have higher kinetic energy, leading to faster movement. This is because heat energy is transferred to the molecules, causing them to vibrate and move more rapidly compared to molecules in cold water with lower kinetic energy.
How do you think molecules move in hot and in cold air?
In hot areas the molecules move quickly and in cold areas the molecules move slower.
Is all lava a hot liquid?
An extremely hot molten substance.
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.
Why does heat go from a hot place to a colder place?
For simplicity, assume two solid blocks of the same material. Molecules in the hotter substance move faster on average; they will bounce against the molecules in the colder substance, transferring part of their energy. Energy is also transferred through bounces from the cold substance to the hot substance - but on average, more energy will be transferred from the hot to the cold substance, simply because on average, the molecules move faster.
Why do molecules move faster in hot then in cold water?
Because the definition of "hot" is that the substance concerned has more average energy per particle and is going faster, not the other way round.
Do air molecules move fast in hot weather or slow?
Air molecules move faster in hot weather and slower in cold weather.
What substance can dissolve in completely in hot water?
Sugar is a substance that can completely dissolve in hot water. When added to hot water, sugar molecules disperse evenly throughout the water molecules, forming a homogeneous solution.
Why does hot matter rise and cold matter sink?
Hot matter rises because it is less dense than cold matter. When a substance is heated, its molecules gain energy and move further apart, making the substance less dense. Cold matter sinks because it is more dense than hot matter. As it cools, its molecules slow down and come closer together, increasing the density of the substance.
How do you think the molecules move in hot and cold air?
In hot areas the molecules move quickly and in cold areas the molecules move slower.
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.
Are things that are boiling always hot?
No, they can be EXTREMELY cold. It depends on the substance and what its elements are.
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.
