Question

Which volume of oxygen, at room temperature and pressure, is needed for complete combustion

of 1.0mol of methylpropan-1-ol?
A 108dm3 B 144dm3 C 156dm3 D 288dm

Answer 1

To determine the volume of oxygen needed for the reaction, we need to know the chemical formula of the fuel in order to know the chemical reaction. Methylpropan-1-ol has a formula of C4H10O. The chemical reaction would be:

C4H10O + 6O2 = 4CO2 + 5H2O

We calculate volume as follows:

1 mol C4H10O ( 6 mol O2 / 1 mol C4H10O) ( 22.4 L O2 / 1 mol O2) = 134.4 L O2 needed or 134.4 dm^3

Therefore, the closest value would be B, 144 dm^3.