The calorific value of a fuel whose 1.5 kg of mass produces 67,500 kJ of heat on burning completely will be

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JTET 2012 (Mathematics & Science) Official Paper-II
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  1. 45,000 kJ/kg
  2. 30,000 kJ/kg
  3. 1,01,250 kJ/kg
  4. 1,01,250 kg/J

Answer (Detailed Solution Below)

Option 1 : 45,000 kJ/kg
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Detailed Solution

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The correct answer is 45,000 kJ/kg.

Key Points

  • Calorific value is the amount of heat energy produced on complete combustion of 1 kg of fuel.
  • The given fuel mass is 1.5 kg and it produces 67,500 kJ of heat.
  • Calorific value calculation involves dividing the total heat produced by the mass of the fuel.
  • Calorific value = Total heat produced / Mass of fuel = 67,500 kJ / 1.5 kg.
  • Therefore, the calorific value = 45,000 kJ/kg.

Additional Information

  • Calorific value is an important property of fuel that determines its efficiency.
  • Higher calorific value indicates a more efficient fuel.
  • Types of calorific value: There are two types: Gross Calorific Value (GCV) and Net Calorific Value (NCV).
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