What is always true of a combustion reaction?
Combustion reactions always involve molecular oxygen O2. Anytime anything burns (in the usual sense), it is a combustion reaction. Combustion reactions are almost always exothermic (i.e., they give off heat). When organic molecules combust the reaction products are carbon dioxide and water (as well as heat).
Which of the following is not a combustion reaction?
CO is not a combustible gas and it does not help in combustion.
What makes a reaction a combustion reaction?
In order for a fire to take place there are 3 main ingredients that must be present: Oxygen, Heat and Fuel. In chemistry we call the type of reaction that produces fire a combustion reaction.
What are the characteristics of combustion?
Combustion reactions are common and very important. Combustion means burning, usually in oxygen but sometimes with other oxidants such as fluorine. A combustion reaction happens quickly, producing heat, and usually light and fire.
What are the similarities and differences between respiration and combustion?
Any substance which can burn leads to combustion; while respiration uses glucose to give pyurvate and the to carbon dioxide. Combustion produces oxides in the form of smoke; in respiration there is no smoke formation. Product of combustion is heat energy; in respiration it is formation of ATP.
Is breathing a combustion?
From a biological perspective, breathing resembles combustion, where chemical bonds are broken down and oxygen is used up; which then produces carbon dioxide.
Can respiration be called combustion?
Respiration is called slow combustion because in the respiration process food materials are burned slowly and at a lower temperature to produce the products of ordinary combustion like CO2, water and energy. Was this answer helpful?
Is respiration a slow combustion?
Slow combustion is a form of combustion which consumes time and takes place slowly. Cellular respiration is an example of slow combustion. In respiration, glucose is oxidised and carbon dioxide and energy are released in the process. This is a very similar reaction to combustion.
Why respiration is referred to as slow combustion?
Respiration is called slow combustion because in the respiration process food materials are burned slowly and at a lower temperature to produce the products of ordinary combustion like CO2, water and energy.
Which gas slows down the process of combustion?
Nitrogen absorbs heat and reduces the combustion efficiency of the fuel. The amount of heat which is available for use is also reduced. At high temperatures, nitrogen combines with oxygen to produce oxides of nitrogen, which are toxic pollutants.
How does spontaneous combustion occur?
Spontaneous combustion can occur when a substance with a relatively low ignition temperature (hay, straw, peat, etc.) begins to release heat. This may occur in several ways, either by oxidation in the presence of moisture and air, or bacterial fermentation, which generates heat.