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Why alkanes produce more energy on combustion?

Why alkanes produce more energy on combustion?

Grade:

2 Answers

bharat bajaj IIT Delhi
askIITians Faculty 122 Points
6 years ago
The energy produced by burning a hydrocarbon comes from breaking both carbon-hydrogen and carbon-carbon bonds and recombining them into carbon-oxygen and hydrogen-oxygen bonds. Because an unsaturated hydrocarbon has fewer hydrogen carbon bonds, it has less hydrogen per molecule than a similar unsaturated hydrocarbon and will produce more carbon dioxide. This also means unsaturated hydrocarbons produce less energy when burned than do saturated hydrocarbons.
Thanks
Bharat Bajaj
IIT Delhi
askiitians faculty
Arun Kumar IIT Delhi
askIITians Faculty 256 Points
6 years ago
Hi
Alkanes produce more energy on combustion because it has better H/C ratio.
Higher this ratio better fuel it is.
Thanks & Regards, Arun Kumar, Btech,IIT Delhi, Askiitians Faculty

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