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JEEMAIN-2015
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Q)
The heat of atomization of methane and ethane are
360
k
J
/
m
o
l
and
620
k
J
/
m
o
l
,
respectively. The longest wavelength of light capable of breaking the C - C bond is (Avogadro number=6.02 \times 10^{23},h= 6.62 \times 10^{-34}\;Js)$: h56.62310234 J s) :
1.49
×
10
3
n
m
2.48
×
10
3
n
m
2.48
×
10
4
n
m
1.49
×
10
4
n
m
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