4 or 5 example of ignition temperature.
Answers
Answer:
In chemistry, the autoignition temperature or kindling point of a substance is the lowest temperature in which it spontaneously ignites in a normal atmosphere without an external source of ignition, such as a flame or spark.[1] This temperature is required to supply the activation energy needed for combustion. The temperature at which a chemical ignites decreases as the pressure or oxygen concentration increases. It is usually applied to a combustible fuel mixture.
The ignition temperature of a substance is the least temperature at which the substance starts combustion.
Substances which spontaneously ignite in a normal atmosphere at naturally ambient temperatures are termed pyrophoric.
Autoig nition temperatures of liquid chemicals are typically measured using a 500-millilitre (18 imp fl oz; 17 US fl oz) flask placed in a temperature-controlled oven in accordance with the procedure described in ASTM E659.
When measured for plastics, autoignition temperature can be also measured under elevated pressure and at 100% oxygen concentration. The resulting value is used as a predictor of viability for high-oxygen service. The main testing standard for this is ASTM G72.
Answer:
It is the lowest temperature at which substance catches fire. Substance cannot catch fire unless it reaches its ignition temperature. Example - Ignition temperature of Diesel is 210 degree celsius. It means it does not catch fire until it reaches 210 degree celsius.
Explanation:
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