Calorific Value
Calorific value is a measure of the energy content of a fuel. It is the amount of heat released when a unit mass of a substance is completely burned. The SI unit of calorific value is kilojoules per kilogram (KJ/kg).

Explanation

Kilojoules per Kilogram (KJ/kg)
- The SI unit of calorific value is kilojoules per kilogram (KJ/kg). This unit represents the amount of energy produced per unit mass of the fuel when it is completely burned.
- It is a common unit used to measure the energy content of various fuels such as coal, oil, gas, and biomass.
- For example, if the calorific value of a fuel is 25 KJ/kg, it means that 25 kilojoules of energy are released when 1 kilogram of the fuel is burned.

Importance of Calorific Value
- Calorific value is an important parameter for determining the efficiency and suitability of a fuel for various applications.
- It helps in calculating the amount of energy that can be obtained from a given quantity of fuel, which is essential for energy production and consumption.

Conclusion
In conclusion, the SI unit of calorific value is kilojoules per kilogram (KJ/kg). This unit is widely used to measure the energy content of different fuels and plays a crucial role in energy-related calculations and applications.