Heating value of coal is approximately in power plant
(A) 1000-2000 kcal / kg
(B) 2000-4000 kcal / kg
(C) 5000-6500 kcal / kg
(D) 9000-10,500 kcal / kg.
(A) 1000-2000 kcal / kg
(B) 2000-4000 kcal / kg
(C) 5000-6500 kcal / kg
(D) 9000-10,500 kcal / kg.