Phenol associate in \( \mathrm{C}_{6} \mathrm{H}_{6} \) to form dimer. A solution of \( 2 \mathr...

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Phenol associate in \( \mathrm{C}_{6} \mathrm{H}_{6} \) to form dimer. A solution of \( 2 \mathrm{gm} \) of phenol in \( 100 \mathrm{gm}_{6} \mathrm{H}_{6} \) has its f. pt lowered by \( 0.72 \mathrm{~K} . \mathrm{K}_{\mathrm{f}} \) for \( \mathrm{C}_{6} \mathrm{H}_{6} \) is \( 5.12 \mathrm{~K} \mathrm{~mol}{ }^{-1} \mathrm{~kg} \). Calculate degree of association of phenol.
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