Question

hey ✨
define calorific value ? ​

Answer 1

Answer:

the energy contained in a fuel or food, determined by measuring the heat produced by the complete combustion of a specified quantity of it. This is now usually expressed in joules per kilogram."double the calorific value of coal"Calorific value is defined as the amount of calories generated when a unit amount of substance is completely oxidized and is determined using the bomb calorimeter.

Explanation:

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Answer 2

Answer:

Calorific value is defined as the amount of heat released on burning of a fuel or on complete combustion of a fuel. (1kg of fuel)

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ADDITIONAL INFORMATION:

• S.I. unit of calorific value is KJ/kg (Kilojoule per kilogram).
• Calorific value of LPG is 55000 KJ/kg. It's value is higher as compared to that of diesel and petrol.

As the calorific value of petrol is 45000 KJ/kg and of diesel is also 45000 kJ/kg.

(5000 KJ/kg > 45000 KJ/kg or Calorific value of LPG > Calorific value of petrol or diesel.)

• As the calorific value of LPG is 55000 KJ/kg which means 1 kg of LPG is burned completely and 55000 KJ of heat energy is produced during it's combustion or burning.

Calorific value of wood is 22000 KJ/kg and of cow dung is 6000-8000 KJ/kg.