One quantum is absorbed per gaseous molecule of \( \mathrm{Br}_{2} \) for converting into Br ato...

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One quantum is absorbed per gaseous molecule of \( \mathrm{Br}_{2} \) for converting into Br atoms. If light absorbed has wavelength \( 5000 A^o \), calculate energy required in \( \mathrm{kJ} / \mathrm{mol} \).
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