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प्रश्न
Write the expression that correlates molal elevation constant to molar enthalpy of vaporisation.
लघु उत्तर
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उत्तर
Molal elevation constant (Kb) for a particular solvent can be calculated from the following relationship.
`K_b = (MRT_b)/(1000 xx Delta H_v)`
Where, Tb = Boiling point of solvent
ΔHv = Molar enthalpy of vaporisation of solvent (Latent heat of vaporisation for one mole of the solvent)
M = Molecular mass of solvent
R = Gas constant
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