1.

5 milli-moles of a solid A was dissolved in 5 moles of H_(2)O. On adding to the solvent, A starts polymerising into another insolublesolid following zero order kinetics. On adding 6 milli-moles of another solid solute C (after 20 minute) the polymerisation completely stops. The insoluble solid polymer is removed and the resulting solution was cooled to a temperature less then .-0.186^(@)C (freezing point of solution ) to cause solidification of some liquid water . Calculate the value of Xif rate constant for polymerisation reaction is represented as 10^(-X) moles//minute. [K_(f) (H_(2)O)= 1.86 K - Kg "mole"^(-1)]

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