For the reaction the value of rate of disappearance of N2O5 is given as 6.25 x 10-3 mol L-1 s-1. The rate of formation of NO2 and O2 is given respectively as: Option 1) 6.25 x 10-3 mol L-1 s-1 and 6.25 x 10-3 mol L-1 s-1 Option 2) 1.25 x 10-2 mol L-1 s-1 and 3.125 x 10-3 mol L-1 s-1 Option 3) 6.25 x 10-3 mol L-1 s-1 and 3.125 x 10-3 mol L-1 s-1 Option 4) 1.25 x 10-2 mol L-1 s-1 and 6.25 x 10-3 mol L-1 s-1

As we learnt in concept

Rates in presence of stoichiometry of reactants/products -

When stoichiometry coefficients of reactants/ products are not equal to one, the rate of disappearance of  & the rate of appearance of products is divided by their respective stoichiometric coefficients

- wherein

Fix the reaction coefficients. The reaction should be

Option 1)

6.25 x 10-3 mol L-1 s-1 and 6.25 x 10-3 mol L-1 s-1

This solution is incorrect

Option 2)

1.25 x 10-2 mol L-1 s-1 and 3.125 x 10-3 mol L-1 s-1

This solution is correct

Option 3)

6.25 x 10-3 mol L-1 s-1 and 3.125 x 10-3 mol L-1 s-1

This solution is incorrect

Option 4)

1.25 x 10-2 mol L-1 s-1 and 6.25 x 10-3 mol L-1 s-1

This solution is incorrect