Question

In an experiment 4.5 kg of fuel was completely burnt . heat produced was 18×10^4kg Jule . Find the SI unit and the most adapted unit​

Answer 1

Answer: The SI unit is Kilo Joules per Kg (KJ/Kg) and the calorific value is 40,000 KJ/Kg.

Explanation: As Joules is the SI unit for heat energy and we calculate the energy per Kg, we use the unit KJ/Kg.

Here, the heat is 180,000 Joules and the fuel weight is 4.5 Kg, so 180,000 divided by 4.5 = 40,000 KJ/Kg.

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