Fire has always fascinated humans. The science behind it has only become apparent in the last few decades. Due to the use of modern scientific tools, this breakthrough was possible. Hydrocarbons and oxygen are involved in combustion. The Combustion Formula releases large amounts of chemically bound energy as fuel is oxidised.
The Extramarks website offers students with multiple study materials such as sample papers and past years’ papers, along with the Combustion Formula and its solutions. This helps learners gain a better knowledge of examination patterns, which in turn increases their self-confidence. In addition, past years’ papers provide students with an insight into the blueprint of the question paper with regard to topics like the Combustion Formula. By practising sample papers and past year’s papers, students also develop time management skills. In order to finish the examination efficiently and on time, students must properly distribute their time between all the questions on the question paper including those involving application of the Combustion Formula. Students can also get an idea of the marks distribution and chapter weightage of the subject’s curriculum by reviewing the past years’ papers. Since the same type of questions appear repeatedly in the examinations, reviewing past papers can also provide students with an indication of the type of questions they may encounter in the examinations. Additionally, they familiarise students with the pattern in which answers should be written in the examinations. The sample papers and past years’ papers help students to perform well in any examinations. They also enable students to avoid any last-minute challenges during the examination. Extramarks suggests students go through several sample papers and past years’ papers prior to the examinations. Furthermore, they can refer to the Combustion Formula and its solutions for a deeper understanding of the concepts and operations of the chapter.
Concept of Combustion
The Combustion Formula process involves a chemical reaction between hydrocarbon fuels and oxygen. Fuel and oxygen react to release heat and light as a result of the reaction. A flame is then created by the combination of heat and light energy. Many types of machinery use the Combustion Formula process, including motors and rocket engines. There are five main types of combustion.
Examples of Combustion
- Homes burn wood and coal
- Vehicles burn petrol and diesel
- Stovetop combustion of CNG, PNG, or LPG
- Thermal power plants use this for energy production
- A fireworks display
As a result, combustion encompasses a wide range of phenomena with wide applications in industry and Science. The home is also affected by it. It is based on knowledge of Physics, Chemistry, and Mechanics. Flame propagation illustrates their interrelationship particularly well. This energy heats the products. When methane is burned with air, the flame temperature reaches around 1900 degrees Celsius. Methane is burned with air in the combustion process. Carbon dioxide and water are its main products. The combustion process produces hundreds of different species, such as hydrogen, oxygen, OH, CH, CH3, etc. In addition to carbon dioxide and water, many pollutants are produced, such as nitrogen oxides, carbon monoxide, and soot. Several parameters determine the efficiency and cleanliness of the Combustion Formula process. Oxygen supply, temperature history, and mixing properties are some parameters to consider. Therefore, one can conclude that it is a chemical reaction between a substance and oxygen that produces heat and light. In addition, the temperature rises significantly as a result of this exothermic reaction.
The heat produced by combustion = Heat of product formation – Heat of reactant formation.
The Combustion Formula is the complete oxidation of hydrocarbons, resulting only in CO2 and H2O. Candle wax, for instance, can be burned cleanly. As a result of incomplete combustion, hydrocarbons produce carbon monoxide in addition to carbon dioxide. The Combustion Formula of coal, for example, releases a lot of soot and carbon monoxide.
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