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the heat of atomization of methane and ...

the heat of atomization of methane and ethane are 360 KJ/mol and 620 KJ/mol , respectively . The longest Wavelength of light capable of breaking . The c-c bond is :
(Avogadro number`=6.02xx10^(23),h=6.62xx10^(-34)Js)`

A

`1.49xx10^(3)cm`

B

`2.48xx10^(4)nm`

C

`2.48xx10^(3)nm`

D

`1.49xx10^(4)nm`

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