Chemical Kinetics and Nuclear ChemistryHard
Question
The rate constant for the reaction N2O5 → 4NO2 + O2 is 3.0 × 10−5 s−1. If the rate of reaction is 2.4 × 10−5 mol litre−1 s−1, then the concentration of N2O5 (in mole litre−1) is
Options
A.1.4
B.1.2
C.0.04
D.0.8
Solution
$r = K\left\lbrack N_{2}O_{5} \right\rbrack$
$\Rightarrow \left\lbrack N_{2}O_{5} \right\rbrack = \frac{r}{K} = \frac{2.4 \times 10^{- 5}\text{ M}\text{s}^{- 1}}{3.0 \times 10^{- 5}\text{ }\text{s}^{- 1}} = 0.8\text{ M}$
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