Practicing Success
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: |
visible region infrared region ultraviolet region microwave region |
ultraviolet region |
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. |