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The enthalpy of formation of NaCl(s) is ...

The enthalpy of formation of NaCl(s) is `-411.2 kJ mol^(-1).` The enthalpy of sublimation of Na(s), its ionization enthalpy in the gaseous state, the bond energy of chlorine, its electron gain enthalpy are `108.4, 495.6, 242 and -348.6 kJ mol^(-1)` respectively. The energy required to break one mole of solid sodium chloride into its ions in the gaseous state is (in kJ)

A

`783.4`

B

`-783. 4`

C

` 502.4`

D

`-502.4`

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BRILLIANT PUBLICATION-THERMODYNAMICS AND CHEMICAL ENERGETICS - (LEVEL-II (HOMEWORK)
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  2. Which of the following is an intensive property

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  3. Which one of the following equations correctly represent the first law...

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  4. A6L cylinder contains 10 mol oxygen gas at 27^(@)C. If the whole gas e...

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  5. The work done on the system when one mole of an ideal gas is compresse...

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  6. Agas is allowed to expand in a well-insulated container against a cons...

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  7. 64 g of oxygen (assume ideal behaviour) at 27^(@)C undergoes reversibl...

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  8. The difference of heat of reaction at constant pressure and at constan...

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  9. Delta H (f) ^(0) values of NH (2) - OH ((s)), NH (3 (g)), N (2) H (4 ...

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  10. A cylinder of cooking gas is assumed to contain 14.2 kg butane (C(4)H(...

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  11. H (2 ) + 1/2 O (2) to H (2) O, Delta H =- 68 kcal K + H (2) O + aq t...

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  12. The standard enthalpies of combustion of C(2) H(5) (g) and ethanol are...

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  13. Delta H (f) ^(0) of H (2) O , CO (2) and sucrose (C(12)H(22)O(11)) are...

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  14. When 0.2 g of 1-butanol was burnt in a suitable apparatus, the heat ev...

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  15. The specific heat at constant volume and constant pressure for a gas a...

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  16. One mole of an ideal gas is allowed to expand reversibly and adiabatic...

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  17. 1.22 g of benzoic acid on combustion in a Bomb calorimeter was found t...

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  18. 200 ml 0.1 M H(2) SO(4) is mixed with 200 ml 0.2 M NaOH. The heat gen...

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  19. In experiment I 200 ml 0.1 M NaOH is mixed with 100 ml 0.1 M H(2) SO(...

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  20. The enthalpies of solution for copper sulphate pentahydrate and anhydr...

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  21. Enthalpy of vaporisation of benzene is 30.8 kJ mol" at its normal boil...

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