Question

Comparing the calorific values of coal and petrol, state which fuel is better. Give

reason.​

Answer 1

Answer :Liquefied petroleum gas, or LPG, produces more heat than coal, because LPG (50 kJ/g) has higher a calorific value than coal (25-30 kJ/g).

Answer 2

Answer:

Coal

Explanation:

Calorific value of coal is 8,000 kcal/kg (approx)

Calorific value of petrol is 47 000kcal/kg (approx)

So, coal is better than petrol as it has more calorific values.

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