Naphthalene, a white solid used to make mothballs, has a vapour pressure of 0.10 mm Hg at `27^(@)C`. Hence `K_(p)` and `K_(c)` for the equilibruim are `: C_(10)Hg(s)hArr C_(10)Hg(g)`A. 0.10,1.10B. `0.10,4.1xx10^(-3)`C. `1.32xx10^(-4)xx10^(-3)`D. `5.34xx10^(-6),1.32xx10^(-4)`

Naphthalene, a white solid used to make mothballs, has a vapour pressu

1.	Naphthalene, a white solid used to make mothballs, has a vapour pressure of 0.10 mm Hg at `27^(@)C`. Hence `K_(p)` and `K_(c)` for the equilibruim are `: C_(10)Hg(s)hArr C_(10)Hg(g)`A. 0.10,1.10B. `0.10,4.1xx10^(-3)`C. `1.32xx10^(-4)xx10^(-3)`D. `5.34xx10^(-6),1.32xx10^(-4)`
Answer» Correct Answer - C `C_(10)H_(8)(s)hArr C_(10)H_(8)(g)` `K_(p)=P_(C_(10)H_(8))=(0.10)/(760)atm` `=1.315xx10^(-4)atm` `K_(p)=K_(c)(RT)^(Deltan)` Here, `R=0.0821 L " atm "K^(-1)moll^(-1),` `T=27+273=300K` `Delta n =1-0=1` `K_(c)=(K_(p))/((RT)^(Deltan))=(1.315xx10^(-4))/((0.0821xx300))` `=(1.315xx10^(-4))/(8.21xx3)=(131.5xx10^(-6))/(24.63)` `=5.339xx10^(-6)`

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Naphthalene, a white solid used to make mothballs, has a vapour pressure of 0.10 mm Hg at `27^(@)C`. Hence `K_(p)` and `K_(c)` for the equilibruim are `: C_(10)Hg(s)hArr C_(10)Hg(g)`A. 0.10,1.10B. `0.10,4.1xx10^(-3)`C. `1.32xx10^(-4)xx10^(-3)`D. `5.34xx10^(-6),1.32xx10^(-4)`

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