Stoichiometrically, the mole ratio of C3H8 to O2 to CO2 to H2O is 1:5:3:4.
According to the equation, the mole ratio of C3H8 to O2 is 1:5. This means that 1 mole of C3H8 will require 5 moles of O2 for complete reaction.
Also, 1 mole of C3H8 when completely burned in 5 moles O2, will produce 3 moles of CO2 and 4 moles of H2O.
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