Exploring Water Particle Size in Gas & Water Phases

[muppet68]

Hallo Everyone,

I am trying to find out what happens to the size of a water particle in the gas phase and water phase. Knowing that the max molecular size of one water molecule is 2,78Angstroms, I am not quite sure at which state this dimension is valid. When combined with other molecules (a mass of water ) then the molecules have a slightly lower size I guess due to the reduction of the angle between the two H atoms. In vapour state where one molecule may be airbourne will the molcule have an overall max dimension of 2,78A or greater?
As the water freezes the mass goes down but the volume goes up (expands) due to the alignment of the molecules, what measurment would one molecule have in this state?
Van der vaal says that water molecules have two sizes, one for hydrogen bonded and one for non-hygrogen bonded molecules but I don't know what these measuremnets are!
Can anyone help?

Thanks

Rob (Muppet68)

 

[hugonot]

I hope this
http://www.chem1.com/acad/sci/aboutwater.html
will be helpfull

 

[charng]

I can provide some insights into the questions you have raised about water particle size in gas and water phases. The size of a water particle in the gas phase is determined by the maximum molecular size of a single water molecule, which is 2.78 Angstroms. This size is valid at all states, including when combined with other molecules. However, in the gas phase, water molecules are constantly moving and interacting with other molecules, so their size may vary slightly due to changes in the angle between the two hydrogen atoms.

In the water phase, the size of a water particle is affected by its state. As water freezes, the molecules align in a specific pattern which causes the overall mass to decrease but the volume to increase. This means that the size of a single water molecule in the frozen state may be slightly larger than in the liquid state due to the alignment of the molecules.

You mentioned Van der Waal's theory, which states that water molecules have two sizes - one for hydrogen bonded and one for non-hydrogen bonded molecules. This refers to the different sizes that water molecules may have depending on their interactions with other molecules. However, the exact measurements for these sizes are not well-defined and may vary depending on the specific conditions.

In conclusion, the size of a water particle in both the gas and water phases is affected by various factors such as its state, interactions with other molecules, and external conditions. While the maximum molecular size of a single water molecule is 2.78 Angstroms, the actual size may vary slightly due to these factors. Further research and experimentation may be needed to fully understand the exact measurements of water particle size in different states and interactions. I hope this helps in your exploration of water particle size.