What is the average distance between air molecules at standard temperature and pressure?

Compare the answers you get with Wikipedia, which says that gas at room temperature and pressure will have a mean free path of about 70 nanometers.

What is the distance between gas molecules?

Thus, a typical molecule is exceedingly small, and there is an impressively large number of them in one cubic centimetre of gas. Between collisions, a gas molecule travels a distance of about l/d = (2.0 × 10-5)/(3.9 × 10-8) = 500 times its diameter.

How does the average distance between air molecules compare to the average distance between water molecules?

The density of air at STP is about (1/1000) the density of water. How doe sthe average distance between air molecules compare to the average distance between water molecules? The distance between molecules in air is about 10 times the distance between molecules in water.

What is the average distance between oxygen molecules at STP Yahoo?

3.34×10−9m.

How far apart are water molecules?

In conclusion, even though hydrogen-bond distances are maintained at 0.29 nm in free water, the average distance between the water molecules is 0.31 nm, corresponding to a volume of about 30×10^-3nm^3/molecule (BNID 105874).

How do you calculate the average separation of molecules?

The total volume divided by the number of molecules would tell you the average volume that each molecule calls its home.

What is the average distance between oxygen molecules at STP?

So if we figure out, if we want to check the main distance between any two molecules, that would be at least to our, so that would be approximately four times 10 raised to -9 m. So this is four nanometers. So this is the distance between two oxygen molecules at STP approximately.

How do you find the number of air molecules in a room?

You can calculate how many molecules there are in a room, (4m x 3m x 3m = 24 m3) giving about 5 x 1026 molecules. This is in fact an estimate of the Avogadro number for a kilo-mole. A kilogram mole of any gas contains 6 x 1026molecules.

What is the average spacing between molecules in the air?

The density of air at 1 Atm and 20°C is m. So, the average spacing, using your teacher’s method, is about nm. The radius of molecular nitrogen is 0.2 nm. So, the diameter is about 0.4 nm. The means that only about of the volume of air is filled with molecules. Air is overwhelmingly empty space.

What is the typical distance between molecules/ atoms in a gas?

Originally Answered: What is the typical distance between molecules / atoms in a gas such as air at room temperature? One mole of an ideal gas at STP occupies 22.4 liters so 1 cu meter = 1000/22.4 moles. Each mole contains 1 Avogadro’s number , 6.0221413e+23 molecules. 1 cu m contains 6.0221413e+23 * 10^3 / 22.4 molecules.

What is the volume of a mole of air in m^3?

According to his sources, the volume of a mole of air is 0.0227 m^3 — so as expected, the ideal gas law overpredicts the spacing slightly (by about 3\%). Another approach to this question is to find the mean free path (ℷ) of the air molecules which is the average distance travelled by a molecule between successive collisions.

How much of the volume of air is filled with molecules?

The radius of molecular nitrogenis 0.2 nm. So, the diameter is about 0.4 nm. The means that only about $(0.4/3.4)^3 = 0.0016$ of the volumeof air is filled with molecules. Air is overwhelmingly empty space. Alternate calculation Let’s calculate this again without using the molecules-on-a-grid approach.