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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 it is given, the energy required to dissociate a carbone monoxide molecule into carbon and oxygen atoms is `E=11eV`
We know that, `E=hf`, where
`h=6.62xx10^(-34)J-s`
`f=frequency`
`implies 11eV=hf`
`f=(11xx1.6xx10^(-19))/(6.62xx10^(-34))=2.65xx10^(15)Hz`
This frequency radiation 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

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