The inter atomic distance of atoms in a gas at ntp is of the order of
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The distance in between molecules in a dynamic system like gas is a probability distribution.
If air is considered as an ideal gas, then under standard temperature and pressure (STP) conditions, the volume occupied by 1 mole of gas can be calculated using the formula
V = nRT/P = 1 x R x 298K/1 atm = 0.0245 m3
Therefore, for a single molecule, V/Na = 4 x 10 -26 m3
Thus, with the cube root order, the space in between the molecules should be around 3 nm.
However, this is just a probability and there are much more attractive interactions in between molecules.
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