I was just wondering if the clean air that we breathe every day has a liquid form (I'm not talking about H2O molecules in air, I mean air itself). Obviously it does, but my question is at what temperature does the air condense into a liquid? And what would it look like? It must be lower than -89 Degrees Celsius (-129 Farenheit) cause that's the coldest temperature ever recorded...
2007-07-07 06:35:04 · 4 answers · asked by Ron 2 in Science & Mathematics ➔ Chemistry
Air is a combination of many gases, mainly nitrogen (ca. 70%), oxygen (ca. 21%) then argon, CO2, neon, helium, hydrogen, ozone (O3), CO, SO2, krypton a.s.o. Each of these gases has a liquefaction temperature under NORMAL CONDITIONS OF PRESSURE. With the pressure increase the liquefaction temperature increases also. At the pressure of 1 bar the nitrogen liquifies at 77K or -195,8 C or -334F and the oxygen at 90,2K or -183C or -297F. You'll find slightly modified figures the more you dig in. The gas that liquifies at the lowest temperature is helium at 4K or -269C or -452F. So, going under this temperature you will be able to find the gases in liquid form. As you can see this temp is only 4K above the absolute zero which is -273,15C and will never occur through weather on Earth.
2007-07-07 07:32:45 · answer #1 · answered by anton p 4 · 0⤊ 2⤋
The oldest temperature ever possible is -273 degrees Celsius.
CO2 solidifies at -44 degrees Celsius
O2 and N2 liquefy at -123 degrees Celsius
2007-07-07 06:47:24 · answer #2 · answered by ag_iitkgp 7 · 1⤊ 1⤋
The temperature at which air condense is basically its dew point. However, this is a function of pressure. This means it will vary at different current pressure, and so at different altitudes.
The standard way is set a a prescribed pressure and you can check ASTM stardard tests. Google ASTM tests and condensation or dew point and you can get more detailed info.
2007-07-07 06:45:38 · answer #3 · answered by Aldo 5 · 1⤊ 1⤋
water boils at a hundred levels celsius whilst it boils it turns right into a gas (vapour) whilst it comes into touch with the air (above the pan or regardless of) it is going to cool because of the fact the air is cooler than the water vapour as quickly because it cools decrease than a hundred levels it is going to start to condense
2016-12-10 04:53:20 · answer #4 · answered by Anonymous · 0⤊ 0⤋