N-butane is converted to isobutane in a continuous isomerization reactor that operates isothermally at 149â°c. the feed to the reactor contains 93 mole% n-butane, 5% isobutane, and 2% hcl at 149â°c, and a 40% conversion of n-butane is achieved. calculate the amount of heat transfer (kj). use a basis of 1 mol total feed.