4.120 kg of a fuel was burnt to produce 178000 kJ of energy. The calorific value (in kJ/kg) of the fuel is
How to find this. Explain this step.

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Solution

$C a l o r i f i c v a l u e = \frac{H e a t p r o d u c e d}{W e i g h t o f t h e f u e l} = \frac{178000}{4.120} = 43203.88 k J / k g$

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