1.

Given the reaction between 2 gases represented by A_(2) and B_(2) to give the compound AD(g). A_(2)(g)+B_(2)(g)hArr2AB(g). At equilibrium, the concentration of A_(2)=3.0xx10^(-3)M of B_(2)=4.2xx10^(-3)M of AB=2.8xx10^(-3)M If the reaction takes place in a scaled vassel at 527^(@)C, then the value of K_(c) will be

Answer»

`2.0`
`1.9`
`0.62`
`4.5`

Solution :`A_(2)+B_(2)hArr2AB`
`K_(C)=((2.8xx10^(-3))^(2))/(3xx10^(-3)xx4.2xx10^(-3))=((2.8))/(3xx4.2)=0.62`


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