Verified answer

Explanation:

The calorific value of fuel is the amount of heat produced by the complete combustion of 1 kg of fuel.

Heat produced by 4.5 kg of fuel =180000 kJ.

Heat produced by 1 kg fuel = 4.5180000 =40000 kJ/kg.

Hence, the calorific value of the fuel is 40,000 kJ/kg.

Answer:

40,000KJ

Explanation:

As we know that the calorific value is the amount of heat produced when 1 gram of the fuel undergoes combustion. Heat given by 4.5 kg of fuel is 1,80,000kJ (given) i.e. Hence, the calorific value of the fuel is 40,000kJ.