Air & Gases Flashcards
Mixing ratio = …………./……….
Number of atoms or molecules in gas / total number of all atoms and molecules of all gases present
The mixing ratio is the ratio of…..
One substance to the quantity of all substances present in a sample.
The earths atmosphere is held above the surface, defying gravity by
The continual energy input of the sun
Water acts as an
Energy store in the atmosphere.
Water captures energy as
Radiation and stores and transports energy.
Water vapour is a
Greenhouse gas
Ozone absorbs
Uv radiation
Ozone ground mixing ratio is
5 - 30 ppbv
Ozone altitude mixing ratio is
6000 - 8000 ppbv
6 - 8 ppmv
CO2 absorbs
IR, preventing it from escaping into space - it is a GHG.
CO2 is responsible for natural
Acid rain
Aerosols absorb radiation and scatter light, they are
Clumps of many different atoms and molecules, such as dust particles.
Air is 78% nitrogen,
21% oxygen and 1% trace gases - water, co2, ozone.
Number density N/V is the
Number of particles per unit volume
Mass density is the
Mass per unit volume
Mass density equation
P = m/v