Calculate the lattice energy of the reaction
`Li^(o+)(g) +CI^(Theta) (g) rarr LiCI(s)`
from the following data:
`Delta_("sub")H^(Theta)(Li) = 160.67 kJ mol^(-1), (1)/(2)D(CI_(2)) = 122.17 kJ mol^(-1) IP(Li) = 520.07 kJ mol^(-1),E_(A)(CI) = - 365.26 kJ mol^(-1)` and `Delta_(f)H^(Theta)(LiCI) =- 401.66 kJ mol^(-1)`

Calculate lattice energy for the change, Li^(+)(g)+Cl^(-) (g) rarr LiCl(g) Given that {:(DeltaH_("sublimation")" of "Li=160.67 kJ mol^(-1)",",,DeltaH_("Dissociation")" of "Cl_(2) =244.34 kJ mol^(-1)","),(DeltaH_("ionisation")" of "Li(g)=520.07 kJ mol^(-1)",",,DeltaH_(E.A)" of "Cl(g)= -365.26 kJ mol^(-1)","),(DeltaH_(f)" of "LiCl(s)= -401.66 kJ mol^(-1)",",,):}

Calculate the resonance energy of gaseous benzene form the following data. BE(C-H) = 416.3 kJ mol^(-1) BE(C-C) = 331.4 kJ mol^(-1) BE(C=C) = 591.1 kJ mol^(-1) Delta_("sub")H^(Theta)(C,"graphite") = 718.4 kJ mol^(-1) Delta_("diss")H^(Theta)(H_(2),g) = 435.9 kJ mol^(-1) Delta_(f)H^(Theta) ("benzene", g) = 82.9 kJ mol^(-1)

Calculate the EA of O atom to O^(2-) ion from the following data: i. Delta_(f)H^(ɵ)[MgO(s)] = -600 kJ mol^(-1) ii. Delta_(u)H^(ɵ) [MgO(s)] = -3860 kJ mol^(-1) iii. IE_(1) + IE_(2) of Mg(g) = 2170 kJ mol^(-1) iv. Delta_("diss")H^(ɵ) of Mg(s) = + 494 kJ mol^(-1) v. Delta_("sub")H^(ɵ) of Mg(s) = +150 kJ mol^(-1)

Calculate the EA of O atom to O^(2-) ion from the following data: i. Delta_(f)H^(ɵ)[MgO(s)] = -600 kJ mol^(-1) ii. Delta_(u)H^(ɵ) [MgO(s)] = -3860 kJ mol^(-1) iii. IE_(1) + IE_(2) of Mg(g) = 2170 kJ mol^(-1) iv. Delta_("diss")H^(ɵ) of Mg(s) = + 494 kJ mol^(-1) v. Delta_("sub")H^(ɵ) of Mg(s) = +150 kJ mol^(-1)

Calculate the resonance energy of toluene (use Kekule structure from the following data C_(7)H_(8)(l) +9O_(2)(g) rarr 7CO_(2)(g) +4H_(2)O(l)+ DeltaH, DeltaH^(Theta) =- 3910 kJ mol^(-1) C_(7)H_(8)(l) rarr C_(7)H_(8)(g), DeltaH^(Theta) = 38.1 kJ mol^(-1) Delta_(f)H^(Theta) (water) =- 285.8 kJ mol^(-1) Delta_(f)H^(Theta) [CO_(2)(g)] =- 393.5 kJ mol^(-1) Heat of atomisation of H_(2)(g) = 436.0 kJ mol^(-1) Heat of sublimation of C(g) = 715.0 kJ mol^(-1) Bond energies of C-H, C-C , and C=C are 413.0, 345.6 , and 610.0 kJ mol^(-1) .

Calculate the lattice energy of formation of NaCl from the following data : Na_((s)) +1//2Cl_(2(g)) to NaCl_((s)) Delta H_(f) -411.3 KJ.mol^(-1) Heat of sublimation of Na_((s)) = 108 . 7 kJ mol ^(-1) Ionisation energy of Na_((g)) = 49.5.0 kJ mol^(-1) Dissociation energy of Cl_(2(g)) = 244 kJ mol^(-1) Electron affinity of Cl_((g)) = - 349 . 0 kJ mol^(-1)

Given Delta_(i)H^(Theta)(HCN) = 45.2 kJ mol^(-1) and Delta_(i)H^(Theta)(CH_(3)COOH) = 2.1 kJ mol^(-1) . Which one of the following facts is true?

Given Delta_(i)H^(Theta)(HCN) = 45.2 kJ mol^(-1) and Delta_(i)H^(Theta)(CH_(3)COOH) = 2.1 kJ mol^(-1) . Which one of the following facts is true?