Q 2653834744.     An ideal mixture of liquids A and B with 2 moles of A and 2 moles of 8 has a total yapour pmssue of 1 atm at a certain temperature. Another mixture with 1 mole of A and 3 moles of B has ai vapour pressure greater than 1 atm. But if 4 moles of C are added to the second mixture, the vapour pressure comes down to 1 atm. Vapour pressure of C, `P_c^o= 0.8` atm. Calculate the vapour pressures of pure A and pure B.

A

`P_A^0 = 1.4` atm, `P_B^o = 0.7` atm

B

`P_A^0 = 1.2` atm, `P_B^o = 0.6` atm

C

`P_A^0 = 1.4` atm, `P_B^o = 0.6` atm

D

`P_A^0 = 0.6` atm, `P_B^o = 1.4` atm

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