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Conventional Sources of Energy

3 kg of coal ...

Question

3 kg of coal liberates 6000 kJ of heat on combustion. Find its calorific value.
2000

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Solution

The correct option is A 2000
Calorific value is the amount of heat energy produced on complete combustion of 1 kg of fuel.
Calorific value =
$\frac{A m o u n t o f h e a t r e l e a s e d}{A m o u n t o f f u e l}$
$\frac{6000}{3}$ = 2000 kJ/kg
=2000 kJ/kg

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