When the equivalence ratio of fuel and air in a simple combustion is less than 1.0, this means that

Question

Quizplus · Accepted Answer

Equivalence ratio (phi) is the ratio of the actual fuel-air ratio to the stoichiometric fuel-air ratio. When phi<1 (less than 1), this means that there is a lean mixture of fuel and air, with less fuel than the amount required for complete combustion. Therefore, the correct choice is B) the mixture is lean; less fuel than air.

When the Equivalence Ratio of Fuel and Air in a Simple