A `20` litre container at `400 K` contains `CO_(2) (g)` at pressure `0.4 atm` and an excess of `SrO` (neglect the volume of solid `SrO`). The volume of the container, when pressure of `CO_(2)` attains its maximum value, will be:
(Given that: `SrCO_(3)(s) hArr SrO(s) +CO_(2)(g)K_(p) =1.6 atm`)

Options

A. 5L
B. 10L
C. 4L
D. 2L

Answer

A

Explanation

`SrCO_3(s) iff SrO(s) + CO_2(g), Kp = 1.6 atm`
Mole of `CO_2 = (PV)/(RT) = (0.4 xx 20)/(RT) = (8)/(RT)`
`Kp = P_(CO_2) = 1.6`
`P_(CO_2) = (nRT)/(V)`
`1.6 = ( (8)/(RT) xx RT)/(V) rArr V = (8)/(1.6) = 5L`