How many of the following energies are involved in the transformation of `Na(s) rarr Na^(o+) (aq)` ?
(a) `1 E` , (b) `Delta_("sub")H^(ɵ)` , ( c) `Delta_("diss")H^(ɵ)`, (d ) `Delta_("hyd")H^(ɵ)`
(e) `Delta_(u)H^(ɵ)`

Calculate the lattice energy from the following data (given 1 eV = 23.0 kcal mol^(-1) ) i. Delta_(f) H^(ɵ) (KI) = -78.0 kcal mol^(-1) ii. IE_(1) of K = 4.0 eV iii. Delta_("diss")H^(ɵ)(I_(2)) = 28.0 kcal mol^(-1) iv. Delta_("sub")H^(ɵ)(K) = 20.0 kcal mol^(-1) v. EA of I = -70.0 kcal mol^(-1) vi. Delta_("sub")H^(ɵ) of I_(2) = 14.0 kcal mol^(-1)

Calculate the lattice energy from the following data (given 1 eV = 23.0 kcal mol^(-1) ) i. Delta_(f) H^(ɵ) (KI) = -78.0 kcal mol^(-1) ii. IE_(1) of K = 4.0 eV iii. Delta_("diss")H^(ɵ)(I_(2)) = 28.0 kcal mol^(-1) iv. Delta_("sub")H^(ɵ)(K) = 20.0 kcal mol^(-1) ltbvrgt v. EA of I = -70.0 kcal mol^(-1) vi. Delta_("sub")H^(ɵ) of I_(2) = 14.0 kcal mol^(-1)

Oxidising power of chlorine in aqueous solution can be determined by the parameters indicated below : 1/2Cl_(2(g))overset(1/2Delta_(diss)H^(odot))(rarr) Cl_(g)overset(Delta_(cg)H^(odot))(rarr)Cl_((g))^(-) overset(Delta_(hyd)H^(odot))(rarr)Cl^(-)_(aq) The energy involved in the conversion of 1/2Cl_(2(g)) to Cl_((aq))^(-) (using the data, Delta_(diss)H_(CL_(2))^(odot)=240" "KJ" "mol^(-1), Delta_(eg)H_(Cl)^(odot)=-349 KJ" "mol^(-1) , Delta_(hyd)H_(Cl^(-))^(odot)=-381KJ" "mol^(-1) ) will be