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Question

"A fuel has calorific value of 25,000 kJ/kg."
Which among the following options does the above statement implies to?



A
4 kg of fuel will release 1,00,000 kJ of energy on complete combustion.
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B
1 kg of fuel will release 1,00,000 kJ of energy on complete combustion.
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C
1 kg of fuel will take in 25,000 kJ of energy on complete combustion.
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D
4 kg of fuel will take in 1,00,000 kJ of energy on complete combustion.
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Solution

The correct option is A 4 kg of fuel will release 1,00,000 kJ of energy on complete combustion.

Calorific value is the amount of heat energy produced on complete combustion of 1 kg of fuel.
That implies 1 kg of fuel gives 25,000 kJ of energy. Similarly, 4 kg of fuel will give 1,00,000 kJ of energy.


Chemistry

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