Question

On comparing the calorific value of coal and coke, following observation is made
(A) coke has lower calorific value than coal
(B) coke has higher a calorific value than coal
(C) coal has higher calorific value than coke
(D) none of these​

Answer 1

Answer:

(c)coal has higher calorific value than coke

Answer 2

Coal has a higher calorific value than coke.

Option: C

Explanation:  

• The calorie specific value of coal is 7000 to 8000 kcal / kg of coal. Coal is actually a form of activated charcoal.  

• Coke has a calorie specific value of 4-6 calories. Calorie specific value is the amount of calories that is present unit weight of a compound.  

• The higher the calorie specific value the more rich it is in energy. The energy is stored mostly in the form of volatile organic compound found in the molecules of coal.

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