The mole fractions of the species in the exhaust from an engine are: y(H2O)=0.0468;y(CO2)=0.0585;y(O2)=0.123;y(N2)=0.772 Other species such as CO and unburned hydrocarbons can be neglected. Assuming that the fuel is a synthetic fuel with formula CHz, the reaction equation is aCHz+b(O2+3.773N2)>0.0468H2O+0.0585CO2+0.123O2+0.772N2 Determine a,b and z (the atomic hydrogen to carbon ratio of the fuel) a= b= z=