4. Define the following: a) Energy b) Combustion c) Fuel d) Ignition temperature e) Calorific value
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4. Define the following: a) Energy b) Combustion c) Fuel d) Ignition temperature e) Calorific value
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(a)The amount of heat energy produced on complete combustion of 1 kg of a fuel is called its calorific value. The calorific value of a fuel is expressed in a unit called kilojoule per kg (kJ/kg).
(b)The calorific value of LPG is 55000KJ/kg means 1 kilogram of LPG is burned completely and55000KJ/kg of heat energy is produced
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Answer:
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Explanation:
a) Energy - The capacity of doing work is called energy.
b) Combustion - A chemical process in which a substance reacts with oxygen to give off heat is called combustion.
c) Fuel - The material which are burned to produce heat energy are called Fuels.
d) Ignition Temperature - The lowest temperature at which a substance catches fire is called it's ignition Temperature
e) Calorific Value - The amount of heat energy produced on complete combustion of 1 kg of fuel is called it's Calorific Value