Spontaneous Combustion

[MMMowman]

Why is the auto-ignition temperature affected by the chain length of straight saturated hydrocarbons? Is it something to do with the distance between the two CH3? Can anyone help me with these questions without telling me to google it.

Alkane Name, Autoignition Temperatures(°C), Sructure
Ethane:472: CH3?CH3
Propane:540: CH3?CH2?CH3
Butane:500: CH3?CH2?CH2?CH3
Pentane:260: CH3?CH2?CH2?CH2?CH3
Hexane: 233.9:CH3?CH2?CH2?CH2?CH2?CH3
Heptane:220: CH3?CH2?CH2?CH2?CH2?CH2?CH3
Octane:220: CH3?CH2?CH2?CH2?CH2?CH2?CH2?CH3
Decane:210: CH3?CH2?CH2?CH2?CH2?CH2?CH2?CH2?CH2?CH3

Autoignition
temperatures
472
540
500
260
233.9
220
220
210

 

[lacktheknack]

Give me a list of alkynes, it might help.

Also, your title is bad grammar.

 

[MMMowman]

Nevermind I found out an solution