how avagadro's hypothesis used to deduce atomicity of elimentary gases
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Atomicity Atomicity is the number of atoms of an element present in one molecule of that element. They can be monoatomic (He), diatomic (H2), triatomic (O3 ...
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Avocados law enable us to change over directly from a statement about volume of gases to a statement about molecules of gases and vice versa
The number of atoms present in one molecule of an element is called the atomicity of an element
For any homo atomic molecule atomicity can be deduced by using the formula
Atomicity= molecular mass/ atomic mass
for eg .
N2 + O2 --> 2NO
nitrogen oxygen Nitric oxide
(1 vol) (1 vol) (2vols)
After applying avogadro's law, the equation becomes
N2 + O2 --> 2NO
(1 molecule ) ( 1 molecule ) (2molecules)
It is found that two molecules of nitric oxide contains 2 atoms of nitrogen and 2 atoms I oxygen.These two atoms of nitrogen and the two atoms of oxygen should have come from 1 molecule of nitrogen and 1 molecule of oxygen, respectively .
Hence nitrogen and oxygen are called diatomic molecules and are written as N2 and O2.
This proves that atomicity of nitrogen is 2 and atomicity of oxygen is 2.
Thus Avogadro's hypothesis is used in the deduction of atomicity of elementary gases.
The number of atoms present in one molecule of an element is called the atomicity of an element
For any homo atomic molecule atomicity can be deduced by using the formula
Atomicity= molecular mass/ atomic mass
for eg .
N2 + O2 --> 2NO
nitrogen oxygen Nitric oxide
(1 vol) (1 vol) (2vols)
After applying avogadro's law, the equation becomes
N2 + O2 --> 2NO
(1 molecule ) ( 1 molecule ) (2molecules)
It is found that two molecules of nitric oxide contains 2 atoms of nitrogen and 2 atoms I oxygen.These two atoms of nitrogen and the two atoms of oxygen should have come from 1 molecule of nitrogen and 1 molecule of oxygen, respectively .
Hence nitrogen and oxygen are called diatomic molecules and are written as N2 and O2.
This proves that atomicity of nitrogen is 2 and atomicity of oxygen is 2.
Thus Avogadro's hypothesis is used in the deduction of atomicity of elementary gases.
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