10. a. What is calorific value? Write its unit.
b. In an experiment 5 kg of a fuel was completely burnt. The heat produced was
measured to be 1,80,000 kJ. Calculate the calorific value of the fuel.
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Explanation:
Total mass of fuel = 4.5 kg Total heat produced = 180,000 kJ Heat produced by burning 1 kg of fuel = 180,000 kJ/4.5 kg = 40,000 kJ/kg. So, calorific value of fuel = 40,000 kJ/kg.
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