Question

write about ignition temperature​

Answer 1

Answer:

The ignition temperature or kindling point of a substance is the lowest temperature at which it spontaneously ignites in normal atmosphere without an external source of ignition, such as a flame or spark.

Answer 2

$\huge{\bold{ANSWER:-}}$

IGNITION TEMPERATURE

Burning a paper with sun rays.

On a sunny day go out and focus the sun rays on a piece of a paper using a magnifying lens. Touch the spot after sometime. How do you feel?

People in ancient times produce sparks by rubbing the pieces of stones together.From above things , we conclude that a combustible substance has to be initially burnt.

The lowest temperature at which a substance catches fire is called it's ignition temperature.

The substances which have very low ignition temperature easily catch fire and are called inflammable substances.

Examples are :-

Petrol, alcohol, liquid petroleum gas (LPG) etc.