8th Class Science Combustion and Flame Question Bank Combustion and Flame

  • question_answer In an experiment, 4.5 kg of a fuel was completely burnt. The heat produced was 180,000 kJ. The calorific value of the fuel is

    A)  180,000 kJ                 

    B)  40,000 kJ                   

    C)  40,000 kJ/kg

    D)         180,000 kJ/kg

    Correct Answer: C

    Solution :

    Total mass of fuel = 4.5 kg             Total heat produced = 180,000 kJ Calorific value\[\text{=}\frac{180,000}{4.5}=40,000\,\,kJ/kg\]

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