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Hydrogen atoms have a greater velocity than oxygen atoms when both elements are submitted to identical conditions of temperature and pressure. For your results to be exact, there must be an identical number of moles for each type of atom (e.g. 3 mol of H2 and 3 mol of O2).

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12y ago
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12y ago

The oxygen atoms would move faster. They would need a higher kinetic energy value to impart the same energy through collision and be felt as heat

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11y ago

Because the mass of oxygen is more than that of hydrogen.

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11y ago

A hot gas has more thermal energy so the average molecular speed of a hot gas would be higher than a cold gas

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13y ago

no - hydrogen is much lighter and thus faster

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13y ago

Hydrogen - they are smaller

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12y ago

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Q: What molecules move faster hot gas or cold gas molecules?
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Related questions

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.)


Why do molecules of gas travel faster than liquids?

gas molecules are less densily packed and hence move faster than liquids


Why would gases diffuse faster on a warm day than on a cold day?

The molecules of a gas move faster at higher temperatures, which therefore speeds up diffusion.


What happens to a fluid when it heats?

When the liquid molecules are heated, they move faster so the liquid boils and some molecules becomes gas molecules. When the liquid molecules are heated, they move faster so the liquid boils and some molecules becomes gas molecules.


What do the molecules of a gas do?

Move a lot faster then liquids and solids.


Could the Molecules In The Gas Phase Move Faster Than The Same Molecules Move In The Liquid Phase?

Yes.


Do molecules move faster in a gas or a solid?

Basically, a solid is quite stationary. It doesn't move very much. Liquids have more energy, meaning that the particles move a lot freer. In a gas the particles are a lot further apart, meaning that they have a LOT more space to move. Solids can be made to move faster if you give it enough energy (ie, heat). The atoms then start vibrating faster, making spaces between the atoms. This is what happens (basically) when you melt something.


Do gas molecules move slower when they are cooled?

Yes, the hotter atoms are, the faster they more.


Why does a gas expand quickest?

Gas expands the quickest because gas molecules are farther apart than molecules of other substances. Gas molecules also move faster.


Why nitrogen gas diffuse faster at a higher temperature?

Molecules move faster at higher temps.


What happens to the density of a fluid when it is heated?

When the liquid molecules are heated, they move faster so the liquid boils and some molecules becomes gas molecules. When the liquid molecules are heated, they move faster so the liquid boils and some molecules becomes gas molecules.


Will molecules go faster and farther when liquid turns to gas?

no, that is the opposite, molecules will move faster and farther apart when the state changes from liquid to gas