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Calculate the lattice energy of NaCI cry...

Calculate the lattice energy of `NaCI` crystal from the following data by the use of Born-Haber cycle. Sublimation energy of `Na = 26 kcal//g`atom, dissociation energy of `CI_(2) = 54 kcal//"mole"`, ionisation energy of `Na(g) = 117 kcal//"mol"`, electron affinity for `CI(g) = 84 kcal//g` atom, heat of formation of `NaCI =- 99 kcal//"mole"`.

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The correct Answer is:
`[-185 kcal//"mole"]`
`[(DeltaH)_("formation") = (DeltaH)_("sub") +I.E. +(DeltaH)_(eg) +1//2 (DeltaH)_("diss") +U]`
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BANSAL-PERIODIC TABLE-EXERCISE-3
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  2. The ionisation potentials of atoms A and B are 400 and 300 kcal mol^(-...

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  3. If internuclear distance between CI atoms in CI(2) is 10Å & between H ...

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  4. The As-CI bond distance in AsCI(3) is 2.20 Å. Estimate the SBCR (singl...

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  5. The Pt-CI distance is 2.32 A in several crystaline compounds What is...

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  6. The IE values of Al((g)) = Al^(+) +e is 577.5 kJ mol^(-) and DeltaH fo...

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  7. For the gaseous reaction K+F rarrK^(o+)+F^(ɵ) Delta H = 19 kcal mo...

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  8. Calculate E.N. of chlorine atom on Pauling scale if I.E. of CI^(-) is ...

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  9. Calculate the electronegativity of fluorine from the following data: ...

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  10. Calculate the E.N. of CI from the bond energy of CIF (61 K Cal//"mol")...

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  11. How many chlorine atoms will be ionised CI rarr CI^(+) +e^(-1) by the ...

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  12. A mixture contains F and Cl atoms . The removal of an electron form e...

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  13. Calculate the lattice energy of NaCI crystal from the following data b...

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  14. Calculate the electron affinity of iodine with the help of the followi...

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  15. The lattice enthalpy of solid NaCI is 772 kJ mol^(-1) and enthalpy of ...

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  16. From the following information {:(A^(-)(g)rarrA^(+2)(g)+3e^(-),Delta...

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  17. For ionic compound A^(2+) 2B^(-) & 2C^(+)D^(2-) (a) A(4)(S) +B(2)(g)...

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  18. Prove that the formation of NaCI(2) is highly endothermic and energeti...

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  19. Given: DeltaH(EG) of A^(+) =- 5x DeltaH(EG) of A^(2+) =- 8x DeltaH...

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  20. What is the maximum number of electron possible in Ni^(+) having same ...

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