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In which one of the following equilibriu...

In which one of the following equilibrium ,` K_p ne K_c ? `

A

`2NO(g)hArrN_2(g)+O_2(g)`

B

`SO_2(g)+NO_2(g)hArrSO_3(g)+NO(g)`

C

`H_2(g) +I_2(g)hArr2HI(g)`

D

`2C(s)+O_2(g)hArr2CO_2(g)`

Text Solution

Verified by Experts

The correct Answer is:
D
Key idea The reaction for which the number of moles of gasesous products `(n_p)` is not equal to the number of moles of gaseous reactants `(n_R)` has different value of `K_c` and ` K_p`.
From the equation `K_p=K_Cxx(RT)^(Deltan_g)`
where , `[Deltan_g" gaseous"=n_p-n_R]`
(a) `n_P=n_R=2, "thus", K_P=K_C`
(b) `n_P=n_R=2, "thus", K_P=K_C`
(c) `n_P=n_R=2, "thus", K_P=K_C`
(d) `n_P=2,n_R=1, "thus", K_PneK_C`
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