Octane (C3H18) enters an engine and burns with air to give products with the dry molar analysis of CO2, 10.5%; CO, 5.8%; CH4, 0.9%; H2, 2.6%; O2, 0.3%; N2, 79.9%. Determine the equivalence ratio.

In the SYNTHESIS OF BIODIESEL, in what state and shape, does transesterification favors the product more? also what other synthetic route can result in FAMEs?  What makes it not preferable than transesterification?

Pp1