Question 12
Can the process of rusting be called combustion? Discuss.
Can the process of rusting be called combustion? Discuss.
Combustion is a chemical process in which a substance reacts with oxygen and gives out energy during the process in the form of either heat or light or both.
Combustion is the process of burning substances to give heat and light.
When iron is exposed to air and moisture for a very long time, it gets covered with a brown flaky substance. This brown flaky substance is called rust and the process is called rusting.
The process of rusting cannot be called combustion due to the following reasons :
Combustion produces energy in the form of heat. No energy is obtained in a rusting process.
Combustion is a chemical process in which a combustible substance reacts with oxygen to produce heat and light whereas in rusting, a metal reacts with oxygen to produce metallic oxide.
Rusting is a very slow process compared to combustion.
Rusting can take place at room temperature whereas combustion takes place only at a specific ignition temperature.
Combustion is a chemical process in which a substance reacts with oxygen and gives out energy during the process in the form of either heat or light or both.
Combustion is the process of burning substances to give heat and light.
When iron is exposed to air and moisture for a very long time, it gets covered with a brown flaky substance. This brown flaky substance is called rust and the process is called rusting.
The process of rusting cannot be called combustion due to the following reasons :
Combustion produces energy in the form of heat. No energy is obtained in a rusting process.
Combustion is a chemical process in which a combustible substance reacts with oxygen to produce heat and light whereas in rusting, a metal reacts with oxygen to produce metallic oxide.
Rusting is a very slow process compared to combustion.
Rusting can take place at room temperature whereas combustion takes place only at a specific ignition temperature.
