Question

5kg of fuel produces 320000 j of heat energy on complete combustion.calculate the calorific value of fuel

Answer 1

We know that calorific value = Amount of heat produce/ Amount of fuel.

Hence, calorific value of the above mentioned reaction =(3,20,000/5)j/kg
64,000j/kg. Ans.

Answer 2

The calorific value of fuel is 64000 J/kg.

Explanation:

Given that,

Mass of the fuel, m = 5 kg

Heat produced, H = 320000 J

The calorific value of fuel is given by the ratio of heat produced divided by the amount of the fuel. It can be given by :

$CF=\dfrac{Q}{m}\\\\CF=\dfrac{320000\ J}{5\ kg}\\\\CF=64000\ J/kg$              

So, the calorific value of fuel is 64000 J/kg. Hence, this is the required solution.

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