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Find out of the value of K(c) for each o...

Find out of the value of `K_(c)` for each of the following equilibrium from the value of `K_(p)`:
(i) `2NOCl (g) hArr 2NO(g) + Cl_(2)(g), K_(p) = 1.8 xx 10^(-2)` at `500 K`
(ii) `CaCO_(3) (s) hArr CaO(s) + CO_(2)(g), K_(p) = 167` at `1073 K`

Text Solution

Verified by Experts

`2NOCI(g)hArr 2NO(g)+CI_2(g)`
`K_R=1.8 xx10^(-2)`
`Deltan_g=3-2=1`
`K_p=K_c(RT)^(Deltan_g)`
`therefore K_c (K_p)/(RT)=(1.8xx10^(-2))/(0.0831xx500)=4.33xx10^(-4)`
`K_p=167`
`Deltan_g=1`
`K_p=K_c(RT)^(Deltan_g)=K_cxx(RT)`
`therefore K_c=(K_p)/(RT)=(167)/(0.083xx1073)=1.88`
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