Hexene and hydrogen bromide combine in an engine reactor of a space

rocket built by the United States Space Agency to form hexylbromide.

With the aid of an infrared spectrometer, the reactor's output flow is

examined. And this mixture contains $\%65$ hexylbromide engine consists

of only hexene and hydrogen bromide. Please identify the other

reactant that is excess and the limiting reactant. Please compute the

extent of reaction if the input flow's molar flow rate is $240mo\frac{l}{s}.$

Please also record the unit for the degree of reaction.