Question

how much air is needed for a complete combustion

Answer 1

which substance do you want to combust

the answer will be approximately 200 grams of air because we need 5 by 2 moles of oxygen to combust acetylene whose weight is 40 gram and we know that in air there is 20 % of oxygen so by the percentage formula we can get the value of air and the answer will be 200 grams

Answer 2

Here is your answer

Complete combustion reacts oxygen with a fuel to produce carbon dioxide and water. Because the air we breathe is only 21% oxygen, a large volume of air is required for complete combustion to take place

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