Question

is burning of inflammable substance same as spontaneous combustion or does it have any other definition​

Answer 1

Spontaneous Combustion

Spontaneous combustion occurred in a copper powder—sulfur mixture used in the manufacture of brake pads.

Spontaneous combustion

Spontaneous combustion is the phenomenon in which a hydrocarbon (or a chemical substance) substance unexpectedly bursts into flame without apparent cause. In ordinary combustion, the hydrocarbon is deliberately heated to its ignition point to make it burn. During this process, many hydrocarbons undergo slow oxidation that, like the rapid oxidation of burning, releases heat. If the heat so released cannot escape, the temperature of the hydrocarbon rises until ignition takes place. Spontaneous combustion often occurs in piles of hydrocarbon-soaked (oily) rags and can constitute a serious fire hazard.