The reaction for oxidation of sulphur is given by [ mathrm{SO}_{2}(mathrm{~g})+frac{1}{2} mathrm{O}_{2}(mathrm{~g}) ightarrow mathrm{SO}_{3}(mathrm{~g}) ] A

The reaction for oxidation of sulphur is given by

\[ \mathrm{SO}_{2}(\mathrm{~g})+\frac{1}{2} \mathrm{O}_{2}(\mathrm{~g}) \rightarrow \mathrm{SO}_{3}(\mathrm{~g}) \]

A mixture of sulphur dioxide and oxygen is fed to the reactor in the mole ratio of \(5: 4\). The process is maintained at \(750 \mathrm{~K}\) and \(1 \mathrm{bar}\). Estimate the molar composition of the reactor-effluent gases at equilibrium, assuming that the reaction mixture behaves like an ideal gas. Given that equilibrium constant \(K=74\).