Introduction.
A chemical process in which a substance reacts with oxygen and give off heat is known as combustion
. The substance that undergoes combustion is called as combustible or fuel. … During the combustion, light is also given off either in the form of a flame or as a glow.
What is flame explain?
Flame, rapidly reacting body of gas, commonly a mixture of air and a combustible gas, that
gives off heat and, usually, light and is self-propagating
. Flame propagation is explained by two theories: heat conduction and diffusion.
What is the difference between flame and combustion?
The fundamental difference is that
combustion is heating and no flames are created
because much of the energy is converted to light energy in burning, resulting in less heat energy compared to combustion. If a flame is created in a combustion process it is referred to as burning.
What is a flame class 8?
When something is burnt, a hot luminous gas emerges out of the substance. This gas is called as flame. Flames are
result of the substances which vaporizes on burning
. Example includes kerosene oil, wax, etc.
What are the 2 types of combustion?
2 Types of Fire. Combustion is applicable to two types of fire:
Flaming combustion and smoldering combustion
[13].
What are the types of flames?
There are three types of flames
natural flame, carburizing flame and oxidizing flame
.
What is flame in love?
FLAME is a game named after the acronym:
Friends, Lovers, Affectionate, Marriage, Enemies
. It is a popular game among young girls at sleepovers, especially with pre-teens and teens who are beginning to explore the world of crushes.
What is flame short answer?
Answer: Flame is
a region where the burning or combustion of gaseous substances take place
. … Those substances which provide energy on burning are called ‘fuels’; e.g., coal, petroleum, LPG, etc. Question 14. Give two examples each of solid fuels, liquid fuels and gaseous fuels.
How is a flame formed?
Fire is the rapid oxidation of a material (the fuel) in the exothermic chemical process
of combustion
, releasing heat, light, and various reaction products. … At a certain point in the combustion reaction, called the ignition point, flames are produced.
What is fuel in science class 8?
Any substance which is easily available and burns in air at a moderate rate, producing a large amount of heat energy, without leaving behind any undesirable residue is called fuel. Example:
wood, charcoal, petrol, kerosene, etc
.
What is a fuel class 8?
A
material which is burnt to produce heat
is called a fuel. For Ex:Wood,coal,LPG,Kerosene,petrol,diesel,natural gas,biogas. … The heat energy produced by burning a fuel can be used directly to cook food,for running motor vehicles and factory machines,can be converted into electrical energy at thermal power stations.
What is calorific value?
Calorific value is
the amount of heat energy present in food or fuel
and which is determined by the complete combustion of specified quantity at constant pressure and in normal conditions. It is also called calorific power. The unit of calorific value is kilojoule per kilogram i.e. KJ/Kg.
What is called combustion?
Combustion is
another word for burning
. In a combustion reaction, a fuel is heated and it reacts with oxygen. … When fuels burn in combustion reactions, they release useful thermal energy (heat). Combustion reactions are used to heat our homes, power most cars, and to generate a lot of our electricity.
How many type of combustion are there?
There are
5 different types
of combustion.
What are examples of combustion in everyday life?
- Burning of Wood or Coal for the household purposes.
- Burning of Petrol or Diesel for using vehicles like car.
- Combustion of Natural Gas or LPG to cook.
- For the production of energy in thermal power plants.
- Fireworks or burning of Wax candle.
What color is a flame?
The inner core of the candle flame
is light blue
, with a temperature of around 1670 K (1400 °C). That is the hottest part of the flame. The color inside the flame becomes yellow, orange, and finally red. The further you reach from the center of the flame, the lower the temperature will be.
