Me and my silly questions... (2 Viewers)

[kikkogirl]

What's the difference between activation energy and ignition temperature???

Are they both like almost the same...
Ignition temperature is the temperature at which a fuel air mixture has enough energy to start a combustion reaction.
Activation energy is the amount of kinetic energy (heat) needed to start a chemical reaction. The heat would be in Kelvin right?
So aren’t they freaking the same, my stupid teacher keeps saying there is a difference.

 

[Riviet]

flash point
the lowest temperature at which a volatile fuel produces enough vapour to form an explosive mixture when it comes in contact with a flame.
so the lower the flash point, i.e. the temperature, the more dangerous is the fuel...but also means that the fuel will combust more readily than others as it is more volatile.

ignition temperature
the minimum temperature at which a fuel/air mixture spontaneously ignites (without contact with a flame)
so the lower the ignition temperature, the more dangerous and volatile the fuel

similar but not the same.

 

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