Q.
The equilibrium constant for the reaction.
$CO ( g )+ H _{2} O ( g ) \rightleftharpoons CO _{2}( g )+ H _{2}( g )$ is $5.$ How many
moles of $CO _{2}$ must be added to $1$ liter container already containing $3\, mol$ each of $CO$ and $H _{2} O$ to make $2\, M$ equilibrium concentration $CO$?
Equilibrium
Solution: