Entropy of a reaction can be calculated as:
S_{reaction}=nS_{product}-mS_{reactant}
Where, n is coefficient of products
m is coefficient of reactants
Here by comparing all the reactions it was found that that the entropy increases in only reaction 1 . as in it ,
S_{reaction}=nS_{product}-mS_{reactant}
S_{reaction}=2S_{product}-1S_{reactant}
Found to be greater than other equations.
