heat liberated per gram of a fuel is called
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Chapter 4: Energy from Combustion Hydrocarbon fuels like methane (CH4) burn in the presence of oxygen to produce carbon dioxide and water. This process of combustion releases energy. When energy is released during the course of a chemical reaction, it is said to be an EXOTHERMIC reaction. ... This is the equivalent of 802.3 kJ/mol CH4.
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The heat liberated per gram of a fuel is called the calorific value.
- When a substance is combusted with oxygen in a specific amount it is known as calorific value or fuel-efficiency.
- It is calculated as heat liberated.
- The unit of calorific value is kilojoule per kg (KJ/kg).
- The products after combustion are cooled under STP and measured.
- The calorific value of fat is more than proteins and carbohydrates.
- It means complete combustion of 1 g of fat will produce more heat than the combustion of the same amount of proteins and carbohydrates.
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