How will you explain the laws of constant proportion on the basis of Dalton’s atomic theory?
Explanation on the basis of Dalton’s atomic theory:
According to Dalton’s atomic theory, each element consists of atoms which are similar and have same weights. Further atoms of one element combine with atoms of another to form compounds. for example that x atoms of element A combine with y atoms of element B and the compound formed is AxBy (Dalton’s atomic theory).
If ‘a’ stands for the atomic mass of A and ‘b’ for that of B,then
Now a and b (atomic masses of elements) are fixed, x and y are also fixed whole numbers according to atomic theory. Therefore per cent of A and B in the compound is also constant. This shows that the composition of various elements in a compound is also fixed. This is the law of constant proportion.
