A vessel at `1000 K` contains carbon dioxide with a pressure of `0.5 atm`. Some of the carbon dioxide is converted to carbon monoxide on addition of graphite. Calculate the value of `K_(p)` if total pressure at equilibrium is `0.8 atm`.

Options

A. `1.8 atm`
B. `3 atm`
C. `0.3 atm`
D. `0.18 atm`

Explanation

`underset(0.5-P)underset(0.5 atm)(CO_(2(g)))+underset()underset()(C_((s))hArrunderset(2P)underset(0)(2CO_((g)))`
Total pressure `=0.5-P+2P=0.8`
`:. P=0.3`
`K_(P)=((P_(CO))^(2))/(P_(CO_(2)))=((2P)^(2))/((0.5-P))=((0.6)^(2))/((0.5-0.3))=1.8atm`