Question

What advantage does coke have coal as a fuel? ​

Answer 1

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Coke is the hardest part of coal contain 99% carbon and give large amount of heat .

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Answer 2

Coal and coke both are as fuels. But, coke is considered to be a better fuel than coal because of the following reasons:

(i) Coke has been higher calorific value than coal: So, coke produces more heat than coal on an equal mass basis.

(ii) Coke does not produce smoke on burning: Coke burns with an almost smokeless flame and does not produce smoke during burning. So, there is lesser air pollution when coke is burnt as compared to when coal is burnt.