which one is an example of spontaneous combustion?
(a) phosphorus catches fire in air
(b) charcoal burns with a dull glow
(c) LPG gas burns with a blue flame
(d) candle burns with a yellow flame
Answers
Answered by
1
Answer:
Phosphorus burns in air at room temperature. It represents spontaneous combustion. Burning of matchstick and burning of cooking gas represents rapid combustion. Ignition of a cracker represents explosion.
Answered by
2
Answer:
(c) LPG gas burns with a blue flame.
Explanation:
1. A blue flame is a characteristic of complete combustion and thus is spontaneous.
2. The other examples show a yellow flame, and this is slow and incomplete combustion which produces soot.
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