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The plot given below shows \( \mathrm{P}_{\mathbf{i}} \mathrm{VT} \) curves (where \( \mathrm{P} \) is the pressure and \( \mathrm{T} \) is the temperature) for two solvents
\( \mathrm{P} \) \( \mathrm{X} \) and \( \mathrm{Y} \) and isomolal solutions of \( \mathrm{NaCl} \) in these

W solvents. \( \mathrm{NaCl}^{*} \) completely dissociates in both the solvents.
On addition of equal number of moles a non-volatile solute \( \mathrm{S} \) in equal amount (in \( \mathrm{kg} \) ) of these solvents, the elevation of boiling point of solvent \( \mathrm{X} \) is three times that of solvent \( \mathrm{Y} \). Solute \( \mathrm{S} \) is known to undergo dimerization in these solvents. If the degree of dimerization is \( 0.7 \) in solvent \( \mathrm{Y} \), the degree of dimerization in solvent \( \mathrm{X} \) is
[JEE Advanced-2018]
Temperature \( (\mathrm{K}) \)
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