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One requires 11eV of energy to dissociat...

One requires `11eV` 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.

A

visible region

B

infrared region

C

ultraviolet region

D

microwave region

Text Solution

Verified by Experts

The correct Answer is:
C
Here, E = 11 eV = `11xx1.6xx10^(-19)J=hupsilon`
`therefore upsilon=(11xx1.6xx10^(-19))/(h)=(11xx1.6xx106^(-19))/(6.62xx10^(-34))=2.6xx10^(15)Hz`
This frequency belongs to ultraviolet region.
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Knowledge Check

  • Find the appropriate electromagnetic radiation required to achieve the dissociation of a carbon monoxide molecule into cabon and oxygen atom which required 11 eV energy:

    A
    visible region
    B
    infrared region
    C
    ultraviolet region
    D
    micorwave region

  • In a carbon monoxide molecule, the carbon and oxygen atoms are separated by a distance of 1.12 xx 10^(-10) m. The distance of the centre of mass from the carbon atom is

    A
    `0.48 xx 10^(-10)` m
    B
    `0.51 xx 10^(-10) m`
    C
    `0.56 xx 10^(-10) m`
    D
    `0.64 xx 10^(-10)` m

  • In a carbon monoxide molecule, the carbon and the oxygen atoms are separted by a distance 1.12 xx 10^(10) m. The distance of the centre of mass from the carbon atom is

    A
    ` 0.64 xx 10^(-10)m`
    B
    `0.56xx10^(-6) `m
    C
    `0.51 xx 10^(-10) m`
    D
    `0.48 xx 10^(-10)` m