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4. The dissociation energy of a carbon-bromine bond is typically about 210 kJ/mol. (a) What is the maximum wavelength of phot

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Answer #1

a)

Given,

The dissociation energy of a carbon-bromine, E = 210 KJ/mol

The energy per bond, E = Total energy / Avogadro's number

= 210 * 1000 / 6.022 * 1023

= 3.487 * 10-19 J

E = hc / \lambda

The wavelegth, \lambda = hc / E

= (6.626 * 10-34 * 3 * 108) / 3.487 * 10-19

= 5.70 * 10-7 m

= 570 nm

b)

The wavelength 570 nm represents the visible region.

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