At a certain temperature , `K_(p)` for dissociation of solid `CaCO_(3)` is `4xx10^(-2)` atm and for the reaction, `C(s)+CO_(2) hArr 2CO` is `2.0` atm, respectively. Calculate the pressure of CO at this temperature when solid `C, CaO, CaCO_(3)` are mixed and allowed to attain equilibrium.

Answer

A, B, C

Explanation

For equation (i), `K_(p)=P_(CO_(2))`
from equation (ii), `K'_(p)=P_(CO)^(2)//P_(CO_(2))`
`:. K_(p)xxK'_(p)=(P_(CO))^(2)=4xx10^(-2)xx2=8xx10^(-2) "atm"^(2)`
`:. P_(CO)=sqrt(8xx10^(-2) "atm"^(2))=0.28 "atm"`