What is a Combustion reaction ? Explain and also give some examples.?

Question

Answer

Combustion

reaction is a reaction which takes place between

Fuel

(Hydrocarbon) and

Oxygen

. When fuel and oxygen react it releases the heat and light energy. Heat and light energy then result in the

flame

. So, the formula for Combustion reaction is Hydrobcarbon + Oxygen = Heat energy. Combustion is used in car motors and rocket engines and many other machineries.

Examples of Combustion reaction are given below:-

Burning of Wood or
Coal
to heat your home
Burning of
Petrol
or Diesel to run your Car
Combustion of Natural Gas or LPG to cook for on your stovetop
For the
production
of energy in thermal power plants
Fireworks
Types of Combustion reaction are as follows:-
1] Complete Combustion
One of the types of combustion is Complete Combustion. Complete combustion occurs in an unlimited supply of air, oxygen in particular. Also, complete combustion is also known as clean combustion. Here the hydrocarbon will burn out completely with the oxygen and leave only two byproducts,
water
, and carbon dioxide.
An example of this is when a candle burns. The heat from the wick will vaporize the wax which reacts with the oxygen in the air. The two
products
of the reaction are water and carbon dioxide. In an ideal situation all the wax burns up and complete combustion takes place
2] Incomplete Combustion
Incomplete combustion takes place when the air is in limited supply. And as opposed to complete combustion it is otherwise known as dirty combustion. Due to lack of oxygen, the fuel will not react completely. This, in turn, produces carbon monoxide and soot instead of carbon dioxide.
An example is burning of paper. It leaves behind ash (a form of soot) as a byproduct. In a complete combustion, the only products are water and carbon dioxide. Also, incomplete combustion produces less energy than complete combustion.
3] Rapid Combustion
Another type of combustion is Rapid Combustion. Rapid energy needs external heat energy for the reaction to occur. The combustion produces a large amount of heat and light energy and does so rapidly. The combustion will carry on as long as the fuel is available.
An example is when you light a candle. The heat energy is provided when we light the candle with a matchstick. And it will carry on till the wax burns out. Hence it is a rapid combustion
4] Spontaneous Combustion
As the name suggests the combustion occurs spontaneously. This means that it requires no external energy for the combustion to start. It happens due to self-heating. A substance with low-ignition temperatures gets heated and this heat is unable to escape.
The temperature rises above ignition point and in the
presence of sufficient oxygen combustion will happen. The reaction of alkali metals with water is an example.
5] Explosive Combustion
Explosive Combustion happens when the reaction occurs very rapidly. The reaction occurs when something ignites to produce heat, light and sound energy, The simple way to describe is it to call it an explosion. Some classic examples are firecrackers or blowing up of dynamite.
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Answer

Examples of Combustion

Burning of Wood or Coal to heat your home.Burning of Petrol or Diesel to run your Car.Combustion of Natural Gas or LPG to cook for on your stovetop.For the production of energy in thermal power plants.Fireworks.

.. A combustion reaction is a major class of chemical reactions, commonly referred to as 'burning.' In the most general sense, combustioninvolves a reaction between any combustible material and an oxidizer to form an oxidized product

A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.Combustion reactions must involve O2 as one reactant. The combustion of hydrogen gas produces water vapor. Notice that thisreaction also qualifies as a combinationreaction,

Answer

When carbon or carbon compounds react with oxygen to produce carbon dioxide and heat energy , this reaction is called combustion.

Explanation:

eg :- C+ O2=co2 + heat

Answer

A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.

NOTE :- Combustion reactions must involve O2 as one reactant.

For Example :-

The combustion of hydrogen gas produces water vapor.

Answer

Combustion reaction:

A combustion reaction is a chemical reaction in which a substance combines with oxygen to produce heat and light. It is an exothermic reaction, meaning it releases energy in the form of heat. Combustion reactions are usually accompanied by the production of flames and the emission of smoke and gases.

Key Points:
- Combustion reactions involve the reaction of a fuel (a substance that can burn) with oxygen.
- The reactants in a combustion reaction are usually a hydrocarbon fuel and oxygen gas.
- The products of a combustion reaction are carbon dioxide, water vapor, and energy in the form of heat and light.

Example 1: Combustion of Methane (CH4)
- Methane is a common hydrocarbon fuel that undergoes combustion.
- The balanced equation for the combustion of methane is:
CH4 + 2O2 → CO2 + 2H2O
- In this reaction, methane reacts with oxygen gas to produce carbon dioxide and water vapor.
- The energy released during the combustion of methane is utilized in various applications, such as heating and cooking.

Example 2: Combustion of Propane (C3H8)
- Propane is another hydrocarbon fuel commonly used for heating and cooking.
- The balanced equation for the combustion of propane is:
C3H8 + 5O2 → 3CO2 + 4H2O
- In this reaction, propane reacts with oxygen gas to produce carbon dioxide and water vapor.
- Propane combustion is often used in gas grills, stoves, and furnaces.

Example 3: Combustion of Wood
- Wood is a complex mixture of hydrocarbons, cellulose, and lignin.
- When wood is burned, it undergoes combustion and releases heat and light.
- The balanced equation for the combustion of wood is:
C6H10O5 + 6O2 → 6CO2 + 5H2O
- In this reaction, wood reacts with oxygen gas to produce carbon dioxide and water vapor.

Conclusion:
Combustion reactions are essential for various applications, including energy production, heating, and cooking. They involve the reaction of a fuel with oxygen to release heat and light. Examples of combustion reactions include the combustion of methane, propane, and wood. These reactions produce carbon dioxide, water vapor, and energy in the form of heat and light.

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