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Amount of heat produced on complete combustion of 1 kg of fuel is called calorific value
(When we burn 1 kg of fuel,amount of heat produced)
How is Calorific Value Measured?
It is measured in kilojoules/kg
Example
Calorific Value of Petrol is 45000 KJ/Kg
It means if 1 Kg of Petrol is completely combusted,it will produce 45000 Kilojoules of heat energy
Calorific Value of Different Fuels
|
Fuel |
Calorific Value (kJ/kg) |
|
Cow dung cake |
6000-8000 |
|
Wood |
17000-22000 |
|
Coal |
25000-33000 |
|
Petrol |
45000 |
|
Kerosene |
45000 |
|
Diesel |
45000 |
|
Methane |
50000 |
|
CNG |
50000 |
|
LPG |
55000 |
|
Biogas |
35000-40000 |
|
Hydrogen |
150000 |
How to calculate Calorific value?
Questions
NCERT Question 7 -
Name the unit in which the calorific value of a fuel is expressed
View Answer
