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Calculate the partial pressure of CO whe...

Calculate the partial pressure of CO when solid C, `Ca CO _(3) and Ca O` are mixed and allowed to attain equilibrium at the temperature for which the following equilibrium have been studied.
`Ca CO _(3) (s) hArr Ca O (s) + CO _(2) (g) , " " K _(p ) = 4. 0 xx 10 ^(-2) atm " "...(i)`
` C (s) + CO _(2) (g) hArr 2 CO (g), " " K _(P) = 2. 0 atm " "...(ii)`

Text Solution

Verified by Experts

For equilibrium `(i), K _(P) = P _(CO _(2)) ` and for equilibrium (ii), `K _(P ) = P_(CO ) ^(2) / ( P _(CO _(2))) `
`K _(P) K ._(P) = ( P _(CO )) ^(2) = 8. 0 xx 10 ^(-2) atm implies P _(CO ) = sqrt ( 8. 0 xx 10 ^(-2)atm)= 0. 28 atm `
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