The zero order reaction 2n2o→2n2+o2 has the reaction constant k is 6.28×10−3 moll s. if the initial concentration of n2o is 0.962 mol/l, what is the concentration of n2o after 10.0 seconds? your answer should have three significant figures (three decimal places).

The concentration of in three significant figures will be 0.899 mol/L.

Explanation:

For the given reaction:

The above reaction follows zero order kinetics. The rate law equation for zero order follows:

where,

k = rate constant for the reaction =

t = time taken = 10 sec

= initial concentration of the reactant = 0.962 mol/L

[A] = concentration of reactant after some time = ?

Putting values in above equation, we get:

Hence, the concentration of in three significant figures will be 0.899 mol/L.