:O Just got a mind-blowing BrainWave...
Ho jayegaa ab. [1]
Vapour Pressure of 0.01molal sol.n of a weak base BOH in water at 200C is 17.536mmHg.
Calculate "Kb" for the base, given that Aqueous Tension at 200C is 17.540mmHg.
(Also assume the base's molarity & molality to be the same.)