Decomposition of non volatile solute (A) into another non volatile solute B and C.When dissolved in water follows first order kinetics as
A(s) H2O------ 2B(s) + C(s)
If initially two moles of A is dissolved in 360g of H2O and left for decomposition at constant temperature (25 deg) Then PS in the given table is ( assuming A,B and C are miscible in water)
S.N. Time The vapour pressure of solution
1. 12 hr 20mm Hg
2 . 80hr PS
Vapour pressure of H2O at 25 deg is 24mm Hg(Log2 = 0.30)
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