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Would a photon whose wavelength is 230 nm have enough energy to photodissociate O2 whose bond energy is 495 kJ/mol? Would it have enough energy to photoionize O2?Match the words in the left column to the appropriate blanks in the sentences on the right.

Respuesta :

Answer: Yes, a wavelength of 230 nm can photo ionize O2.

Explanation:

Wavelength, λ = 230 nm = 230 × [tex]10^{-9}[/tex]

Bond disassociation energy per mole = 495 kJ/mol

Bond disassociation energy per molecule = [tex]\frac{495000}{6.022\times10^{23}}[/tex]

= 8.22×[tex]10^{-19}[/tex]

Wavelength associated with this bond energy is, =[tex]\frac{hc}{E}[/tex]

= [tex]\frac{1.98\times10^{-25}}{E}[/tex]

= 242 nm

Therefore, any wavelength shorter than 242 nm can photo ionize O2.

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