One requires 11 eV of energy to dissociate a carbon monoxide molecule into carbon and oxygen atoms. The minimum frequency of the appropriate electromagnetic radiation to achieve the dissociation lies in:
Answer & explanation
Correct answer: option 3
Given, energy required to dissociate a carbon monoxide molecule into carbon and oxygen atoms E = 11 eV
We know that, E = hv
where 6.62 × 10-34 J-s, v = frequency
⇒ 11eV = hv ,
⇒ $v=\frac{11 \times 1.6 \times 10^{-19}}{h} J=\frac{11 \times 1.6 \times 10^{-19}}{6.62 \times 10^{-34}} J=2.65 \times 10^{15} Hz$
The frequency radiation belongs to ultraviolet region.