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Questions and Answers
What is the definition of a fuel?
What is the definition of a fuel?
- Any substance used to produce heat or power by combustion (correct)
- Any substance that evolves light and heat
- Any substance that undergoes oxidation
- Any substance that produces light and heat
What does the term 'combustion' refer to?
What does the term 'combustion' refer to?
- The reaction of a fuel with water vapor
- The reaction of a fuel with carbon dioxide
- The endothermal oxidation of a fuel by air or oxygen at a slow rate
- The exothermal oxidation of a fuel by air or oxygen at a rapid rate (correct)
What are the products of the combustion of most fuels containing carbon or hydrogen?
What are the products of the combustion of most fuels containing carbon or hydrogen?
- Carbon monoxide and sulphur dioxide
- Sulphur dioxide and ash
- Carbon dioxide and water (correct)
- Carbon monoxide and water vapor
What is the classification of liquid fuels based on physical state?
What is the classification of liquid fuels based on physical state?
What are primary or natural fuels based on occurrence?
What are primary or natural fuels based on occurrence?
What is the term used for the exothermal oxidation of a fuel by air or oxygen occurring at a sufficiently rapid rate to produce a high temperature, usually with the appearance of a flame?
What is the term used for the exothermal oxidation of a fuel by air or oxygen occurring at a sufficiently rapid rate to produce a high temperature, usually with the appearance of a flame?
What are the products of the combustion of most fuels containing carbon or hydrogen?
What are the products of the combustion of most fuels containing carbon or hydrogen?
Which classification of fuels includes wood and coal as examples?
Which classification of fuels includes wood and coal as examples?
What is the chemical process accompanied by the evolution of light and heat called?
What is the chemical process accompanied by the evolution of light and heat called?
What is defined as any substance used to produce heat or power by combustion?
What is defined as any substance used to produce heat or power by combustion?
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Study Notes
Definition of Fuel and Combustion
- A fuel is defined as any substance used to produce heat or power by combustion.
Combustion Process
- Combustion refers to the exothermal oxidation of a fuel by air or oxygen occurring at a sufficiently rapid rate to produce a high temperature, usually with the appearance of a flame.
Products of Combustion
- The products of the combustion of most fuels containing carbon or hydrogen include carbon dioxide and water.
Classification of Fuels
- Liquid fuels are classified based on their physical state.
- Primary or natural fuels are classified based on their occurrence, including fossil fuels such as coal and wood.
Types of Fuels
- Solid fuels include wood and coal as examples.
Chemical Process of Combustion
- Combustion is a chemical process accompanied by the evolution of light and heat.
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