Hydrogen is burned with 140% excess air. The air-fuel ratio is nearest:
A) 27 kgair /kgfuel
B) 36 kgair /kgfuel
C) 43 kgair /kgfuel
D) 48 kgair /kgfuel
D) 48 kgair /kgfuel
The stoichiometric chemical reaction equation is balanced as follows:
With 140% excess air, A =1.4× 0.5 = 0.7 so that the air-fuel ratio is
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