Page 4 - COMPOSITION AND PROPERTIES OF AIR

C
ON OF A
COMPOSITION OF AIR
R
I
OM
I
T
OS
I
P

a
Air
mixtur
a

e
• •Air is a mixture of a
of
is
number of gases and
number of gas es and
par
s
some other particles.
tic
other
.
ome
les
t

I
contains
• •It contains 78%
78%
nitrogen and 21%
nitr ogen and 21%
o xy gen. T he r emaining
oxygen. The remaining
1% consists of water
1% cons is ts of w a ter
v a pour and gas es s uc h
vapour and gases such

neon

as
as argon, helium, neon
helium,
gon,
ar
and
and carbon dioxide.
carbon
xide.
dio