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Kinetic theory of gases
Average number of molecule's free path
mean free path of molecule
=
m
x
Å
nm
μm
mm
cm
dm
m
km
n mile
in
ft
yd
molar mass
M =
kg/mol
x
g/mol
kg/mol
molecule diametre
d =
m
x
Å
nm
μm
mm
cm
dm
m
km
n mile
in
ft
yd
Avogadro number
N
a
=
6.022E23
1/mol
gas density
ρ =
kg/m
3
x
kg/m
3
kg/dm
3
g/cm
3
t/m
3
kg/l
3
g/l
3
g/ml
3
1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"