How do two gases make a liquid (H2O)?
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Nohoch Mac
ANSWERS: 3
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idk, lets experiment
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The answer is quite complicated, and depends upon the behaviour of the electron clouds around the atoms. Basically, in the gas state, both hydrogen and oxygen pair off, and the pairs are quite symmetrical. This mean that the H2 and O2 molecues have no attraction to each other. But when they form H20, the charges are a bit unbalanced. The electrons (-) tend to move ii a bit towards the O. That means that the H atoms at the end are a little bit positive, and the O atoms in the middle are a little bit negative. Since positive and negative attract, there is a weak force (van der Walls force) pulling them together. Which means that, if the temperature is low enough (below boiling point) they all stick together, rolling over each other, which is what we call a liquid.
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Well, in case of water intermolecular Hydrogen bonding is very much responsible for its liquid state.When a very much electronegative atom(oxygen in this case) is attracted to Hydrogen of same or other molecule Hydrogen Bonding takes place.This is not an actual bond but is very strong and makes very light weight water (molecular mass =18) a liquid.On the other hand ethane(molecular mass=30) is a gas despite having more molecular mass than water because it has no Hydrogen Bonding.
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