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How much percent of hydrogen gas does methane contain?

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How much percent of hydrogen gas does methane contain?

(a) 25%

(b) 50%

(c) 68%

(d) 85%

I got this question in a national level competition.

Question is from Calorific Value of Fuels topic in portion Steam Power Plant of Energy Engineering

1 Answer

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Best answer
Correct answer is (a) 25%

For explanation I would say: Methane contains 25% of hydrogen. Since the calorific value of fuels depends on the percentage of hydrogen present in them. So the fuels which have higher percentage of hydrogen will have higher calorific value as compared to those fuels which have lower percentage of hydrogen.

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