The catalytic dehydrogenation of 1-butene [ mathrm{C}_{4} mathrm{H}_{8}(mathrm{~g}) ightarrow mathrm{C}_{4} mathrm{H}_{6}(mathrm{~g})+mathrm{H}_{2}(mathrm{~g}) ] is carried out at

The catalytic dehydrogenation of 1-butene

\[ \mathrm{C}_{4} \mathrm{H}_{8}(\mathrm{~g}) \rightarrow \mathrm{C}_{4} \mathrm{H}_{6}(\mathrm{~g})+\mathrm{H}_{2}(\mathrm{~g}) \]

is carried out at \(900 \mathrm{~K}\) and \(1 \mathrm{~atm}\) and with a ratio of \(10 \mathrm{~mol}\) of steam per mole of butane. Determine the extent of reaction at equilibrium. Also determine the extent of reaction in the absence of steam.