General Science - Physics (Basics)Which of the following statements about calorific value is correct?AIt is the amount of heat released by burning 1 litre of fuelBIt is the amount of heat released by burning 1 kg of fuel completelyCIt is the amount of heat absorbed by 1 kg of fuelDIt is the amount of heat required to ignite the fuelCheck Answer
Step-by-Step SolutionStep 1: Define calorific valueCalorific value is the heat energy released on complete combustion of unit mass of fuel.Step 2: Analyze optionsIt is measured per kilogram, not per litre; it is heat released, not absorbed or ignition energy.Step 3: Eliminate incorrect optionsHeat absorbed and ignition energy are different concepts from calorific value.Final Answer:It is the amount of heat released by burning 1 kg of fuel completely → Option BQuick Check:Calorific value = Heat released per kg fuel burned ✅Quick Trick: Calorific value = Heat released per kg fuelCommon Mistakes:MISTAKESConfusing calorific value with ignition energy or volume-based heat.
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