Q. if 100g of fuel A is burnt in air then it produces 230000 J energy while 150g of another Fuel B when burnt produces 3924 kJ energy, find the calorific value of both and tell which is a better fuel
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Explanation:
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The calorific value of fuel is the amount of heat produced by the complete combustion of 1 kg of fuel.
Heat produced by 4.5 kg of fuel =180000 kJ.
Heat produced by 1 kg fuel =
4.5
180000
=40000 kJ/kg.
Hence, the calorific value of the fuel is 40,000 kJ/kg.