Grade 88 grade science
What is spontaneos and explosive combustion.please explain clearly and urgently
4 Answers
Sakshi
spontaneous reactions are those which take place at the same instant ie the Spontaneous combustion or spontaneous ignition is a type of combustion which occurs by self-heating (increase in temperature due to exothermic internal reactions), followed by thermal runaway (self heating which rapidly accelerates to high temperatures) and finally, ignition.
Prabhakar ch
Spontaneous combustion or spontaneous ignition is a type of combustion which occurs by self-heating (increase in temperature due to exothermic internal reactions), followed by thermal runaway (self heating which rapidly accelerates to high temperatures) and finally, ignition.
The speed of the reaction is what distinguishes an explosive reaction from an ordinary combustion reaction. Unless the reaction occurs very rapidly, the thermally expanding gases will be moderately dissipated in the medium, with no large differential in pressure and there will be no explosion. Consider a wood fire.
Siddharth Singh
Spontaneous combustion or spontaneous ignition is a type of combustion which occurs by self-heating (increase in temperature due to exothermic internal reactions), followed by thermal runaway (self heating which rapidly accelerates to high temperatures) and finally, ignition.The speed of the reaction is what distinguishes an explosive reaction from an ordinary combustion reaction. Unless the reaction occurs very rapidly, the thermally expanding gases will be moderately dissipated in the medium, with no large differential in pressure and there will be no explosion..... thanks
Scholr Boy
Spontaneous combustion:
The combustion in which substances suddenly burst into flames, without the application of any apparent cause is called spontaneous combustion.
For example, sodium and phosphorus burn spontaneously in air, even when no external heat is provided to them.
explosive combustion:
The combustion in which sudden reactions take place on ignition of some substances to produce heat, light, and sound is called explosion.
For example, fireworks on ignition produce heat, light, and sound.
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