1.

Consider the following reactions in which all the reactants and the products are in gaseous state None 2PQhArrP_(2)+Q_(2),""K_(1)=2.5xx10^(5) PQ+1//2R_(2)hArrPQR,""K_(2)=5xx10^(-3) The value of K_(1) for the equlibrium 1//2P_(2)+1//2Q_(2)+1//2R_(2)hArrPQR, is

Answer»

<P>`2.5xx10^(-3)`
`2.5xx10^(3)`
`1.0xx10^(-5)`
`5xx10^(3)`

Solution :Given,`2PQhArrP_(2)+Q_(2)`
`K_(1)=([P_(2)][Q_(2)])/([PQ]^(2))=2.5xx10^(5)`
`PQ+1//2R_(2)hArrPQR.`
`K_(2)=([PQR])/([PQ][R_(2)]^(1//2))=5xx10^(-3)`
Required equlibrium is:
`1//2P_(2)+1//2Q_(2)+1//2R_(2)hArrPQR,`
`K_(3)=([PQR])/([P_(2)]^(1//2)[Q_(2)]^(1//2)[R_(2)]^(1//2))`
`K_(3)=K_(2)xxsqrt((1)/(K_(1)))`
`=5xx10^(-3)xxsqrt((1)/(2.5xx10^(5)))=(5xx10^(-3))/(0.5xx10^(3))=1XX10^(-5)`


Discussion

No Comment Found