Question

highest ranking coal and approx calorific value?

Answer 1

highest ranking coal and approx calorific value?

It has the highest carbon content, the fewest impurities, and the highest energydensity of all types of coaland is the highest ranking ofcoal. Anthracite is the mostmetamorphosed type of coal(but still represents low-grademetamorphism), in which the carbon content is between 92% and 98%.
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Answer 2

It is the highest rank of coal. moisture content generally is less than 15 %. Anthracite has a calorfific values of around 9 kW/kG or above.