Question

What is the calorific value of -------- I) Anthracite coal II) Bituminous coal III) Lignite coal?​

Answer 1

Answer:

calorific value of coal:

Anthracite coal: 24000 kj/kg

bituminous coal: 35 megajoules per kg

lignite coal : 17 megajoules per kg

Answer 2

Lignite $\tt\implies$65-76 $\tt\implies$20-25

Bituminous coals $\tt\implies$75-91 $\tt\implies$27-37

Anthracite $\tt\implies$92-94 $\tt\implies$36-37