A mixture of `AB_(3)(g)` and `A_(2)B_(4)(g)` is placed in a sealed container. (At. Mass of A = 14 and At. ,mass of B =1 )
The temperature initially maintained is 300K. The total pressure is 0.5 atm. The container is heated to 1200k, when both `AB_(3)` and `A_(2) B_(4)` decomposed to `A_(2)` and `B_(2)` when the decomposition was complete the pressure observed was 4.5 atm.
What is the percentage of `AB_(3)(g)` in the original mixture ?

Answer

`0075`