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CBSE - X - Physics - Sources of Energy

What is Biogas?mention the main constituent of is it considered as a ideal fuel..

Asked by 30th September 2009, 6:49 PM
Answered by Expert


Biogas is a gas produced by the biological breakdown of organic matter in the absence of oxygen.
It is a mixture of methane(65%) , Carbon dioxide , hydrogen, hydrogen sulphide etc.
Its considered an ideal fuel because:
1. It burns without smoke and leaves no residue.
2. Its heat capacity is high.
3. Animal and food waste and sewage undergo natural anaerobic digestion in an oxygen-free environment.Therefore, biogas is included in the category of renewable energy sources because till humans and animals exist on the planet, biogas will go on being produced.

Answered by Expert 30th September 2009, 6:51 PM

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