Question

Calculate the calorific value of the fuel if the mass of the fuel is 5 kg and the heat produced is 65000KJ

Answer 1

Answer:

The amount of heat energy produced on completely burning one kilogram of a fuel in pure oxygen is called the calorific value of a fuel.

Calorific value is expressed in kilojoules per kilogram (kJ/kg)

Solution:

Mass of fuel= 5 kg

To find : Calorific value = ?

Formula used : Calorific value = Weight of fuel burnt/Amount of heat produced

Calorific Value= 65000 kJ/5 kg

                        = 65000/5

                        = 13000kJ/kg

​

Answer 2

Answer:

Given: Weight of fuel burnt = 4.5kg

To find : Calorific value = ?

Formula used : Calorific value =\frac{Amount\ of\ heat\ produced}{Weight\ of\ fuel\ burnt}

Solution :

Calorific value = \frac{180000}{4.5}

∴ Calorific value = 40,000 kJ/kg