Wednesday, March 20, 2013

Air Fuel Ratios Explained

Where does the air/fuel ratio 14.7:1 come from? What is the air fuel ratio of a gasoline engine? Find out in the video below:

5 comments:

  1. So this ratio is a mass ratio rather than a molar ratio? I'm confused as we've rarely ever used mass ratios in Chemistry. It seems that if we used a molar ratio of this equation, we would get 12.5 to 1 (12.5 moles of air reacted with every 1 mole of octane). This ratio also seems close taking into account the assumptions you pointed out in the video.

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    Replies
    1. Yes, it's by mass.

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    2. Thanks, a quick google proved that to be correct >.<

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