17 Isoctane of molecular formula(C2H18) is one of the principal constituents of car fuel. 20g
of isoctane is burned:
a) Write the equation for the complete
combustion of isoctane.
b) Calculate the number of moles of
oxygen consumed.

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?