10 milimoles of a solid A when dissolved in 10 noles of a liquid solvent B starts trimerisation process obeying first order kinetics (with the trimer also soluble in the solvent B). On addition of 5 mili-moles of another soluble substance C after 10 minutes the trimarisation compeletely stops. The reresulting solution is cooled to some temperature lower than 49.96^(@) C (melting point of solution obtained after mixing C)to cause solidification of some B. The remaining solution after removal of solid B is heated to 70^(@) Cwhere vapour pressure was found to be 200 mm of Hg. Given: Vapour pressure of liquid B at 70^(@) C =201 mm Of Hg, Normal melting point of B = 50^(@) C, Cryoscopic constant = 2 K kg mol^(-1), molar mass of B = 50 g mol^(-1). Calcualate a four digit number abcd where ab=half life of trimarisation of A (in min) cd=moles of B solidified.

10 milimoles of a solid A when dissolved in 10 noles of a liquid solve

1.	10 milimoles of a solid A when dissolved in 10 noles of a liquid solvent B starts trimerisation process obeying first order kinetics (with the trimer also soluble in the solvent B). On addition of 5 mili-moles of another soluble substance C after 10 minutes the trimarisation compeletely stops. The reresulting solution is cooled to some temperature lower than 49.96^(@) C (melting point of solution obtained after mixing C)to cause solidification of some B. The remaining solution after removal of solid B is heated to 70^(@) Cwhere vapour pressure was found to be 200 mm of Hg. Given: Vapour pressure of liquid B at 70^(@) C =201 mm Of Hg, Normal melting point of B = 50^(@) C, Cryoscopic constant = 2 K kg mol^(-1), molar mass of B = 50 g mol^(-1). Calcualate a four digit number abcd where ab=half life of trimarisation of A (in min) cd=moles of B solidified.
Answer» ANSWER :508