Density of air Totally Explained

Everything about The Density Of Air totally explained

The density of air, ρ (Greek: rho) (air density), is the mass per unit volume of Earth's atmosphere, and is a useful value in aeronautics. As does air pressure, air density decreases with increasing altitude and temperature. At sea level and at 20 °C, dry air has a density of approximately 1.2 kg/m³. The density of water, which is about 1000 kg/m³ (1 g/cm³), is about 800 times more than the density of air.

Effects of temperature and pressure

The formula for the density of dry air is given by: ť

ho = frac

Importance of temperature

The below table demonstrates that the properties of air change significantly with temperature. Table — speed of sound in air c, density of air ρ, acoustic impedance Z vs. temperature °C

Effect of temperature
°C	c in m/s	ρ in kg/m³	Z in Pa·s/m
−10	325.2	1.342	436.1
−5	328.3	1.317	432.0
0	331.3	1.292	428.4
+5	334.3	1.269	424.3
+10	337.3	1.247	420.6
+15	340.3	1.225	416.8
+20	343.2	1.204	413.2
+25	346.1	1.184	409.8
+30	349.0	1.165	406.3

Further Information

Get more info on 'Density Of Air'.

External Link Exchanges

Do you know how hard it is to get a link from a large encyclopaedia? Well we're different and will prove it. To get a link from us just add the following HTML to your site on a relevant page:

<a href="http://density_of_air.totallyexplained.com">Density of air Totally Explained</a>

Then simply click through this link from your web page. Our crawlers will verify your link, extract the title of your web page and instantly add a link back to it. If you like you can remove the words Totally Explained and embed the link in article text.
As long as your link remains in place, we'll keep our link to you right here. Please play fair - our crawlers are watching. Your site must be closely related to this one's topic. Any kind of spamming, dubious practises or removing the link will result in your link from us being dropped and, potentially, your whole site being banned.