Calculate the partial pressure of carbon monoxide from the following data `:`
`CaCO_(3)overset(Delta)(hArr) CaO(s)+CO_(2) uarr ,K(p)=8xx10^(-2)`
`CO_(2)(g)+C(s) hArr 2CO(g), K_(p)=2`

Options

A. 0.2
B. 0.4
C. 1.6
D. 4

Answer

B

Explanation

`CoCO_(3)(s)overset(Delta)(hArr)CaO(s)+CO_(2)(g),K_(p)=8xx10^(-2)`
`CO_(2)(g)+C(s) hArr 2CO(g), K_(p)^(')=2`
`:. CaCO_(3)(s)+C(s) overset(Delta)(hArr) CaO(s) +2CO(g),K_(p)^('')`
`K_(p)^('')=K_(p)xxK_(p)^(')`
`K_(p)^('')=(p_(CO)^(2))`
`0.16=(p_(CO))^(2)`
`:. p_(CO)=0.4atm`