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steposvetlana [31]
3 years ago
5

) The C O bond dissociation energy in CO2 is 799 kJ/mol. The maximum wavelength of electromagnetic radiation required to rupture

this bond is ________.
Chemistry
1 answer:
Kitty [74]3 years ago
4 0

Answer:

λ = 150 nm

Explanation:

For C-O bond rupture:

The required energy to rupture C-O bond = bond energy of C-O bond

= 799 kJ/mol

\mathsf{= 799 \ kJ/mol \times ( \dfrac{1 \ mol }{6.023 \times 10^{23} \ C-O \ bonds })}

\mathsf{= 1.3265 \times 10^{-21}  \ kJ/ C-O \ bond}

\mathsf{= 1.33 \times 10^{-18} \ J/C-O \ bond}

Recall that the wavelength associated with energy and frequency is expressed as:

E = \dfrac{hc}{\lambda}

\lambda = \dfrac{hc}{E}

\lambda = \dfrac{(6.626 \times 10^{-34} \ J.s^{-1}) \times (3.0 \times 10^8 \ ms^{-1})}{ 1.33 \times 10^{-18} \ J/C-O \ bond}}

\mathsf{\lambda = 1.50 \times 10^{-7} \ m}

λ = 150 nm

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