Question

tell me all about calorific value

Answer 1

Answer:Calorific value is the amount of heat energy present in food or fuel and which is determined by the complete combustion of specified quantity at constant pressure and in normal conditions. It is also called calorific power. The unit of calorific value is kilojoule per kilogram i.e. KJ/Kg.

Fuel: Calorific Value Of Fuel(Approximately)

Coal: 33000

Petrol: 45000

Explanation:MARK ME AS BRAINLIEST

Answer 2

Answer:

✏️ CALORIFIC VALUE :-

The amount of heat energy released on complete combustion of 1 kg of a fuel in air or oxygen is called its calorific value. It is expressed in kJ/kg.

☆Calorific value =$\dfrac{ Amount\:of\:fuel\:burnt}{mass\:of\:fuel}$

☆ Unit is written as KJ / Kg

✏️ HERE THE NUMERICAL EX.

In an experiment, 4.5 kg of a fuel burnt completely . the heat produced measured to be 180,000 KJ . calculate the calorific value of the fuel.

✏️ HERE THE SOLUTION OF THE NUMERICAL

Calorific value = $\dfrac{ Amount\:of\:fuel\:burnt}{mass\:of\:fuel}$

= 180,000/4.5

= 40,000 KJ / Kg

Hence the calorific value of the fuel is 40,000 KJ / Kg