Answer:
3000 kJ/kg
Explanation:
The calorific value of a substance is the amount of heat produced per unit mass by the combustion of the substance.
It is given by:
[tex]C=\frac{Q}{m}[/tex]
where
Q is the amount of heat released
m is the mass of the fuel
In this problem, we have:
m = 60 kg is the mass of fuel
[tex]Q=180,000 kJ[/tex] is the amount of heat released
Therefore, the calorific value of the fuel is:
[tex]C=\frac{180,000}{60}=3000 kJ/kg[/tex]