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The lattice enthalpy of an ionic compound is the enthalpy change for the dissociation of one mole of an ionic compound present into gaseous state, dissociates into its ions. Itis impossible to determine it directly by experiment.Suggest and explain an indirect method to measure lattice enthalpy of NaCI(s) .

The lattice enthalpy of an ionic compound is the enthalpy when one mole of an ionic compoud present in its gaseous state, dissociates into its ions. It is impossible to determine it directly by experiment. Suggest and explain in indirect method to measure lattice enthalpy of NaCl(s).

SL ARORA-Units and Measurements-Exercise
  1. INDIRECT METHOD

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  2. Calculate the number of astronomical units in one metre.

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  3. How many parsec are ther in one metre?

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  4. How many metre are there in a light year?

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  5. The density of air is 1.293 kg /m^3. Express it in cgs units.

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  6. Express an acceleration of 10ms^(-2) in km h^(-2)

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  7. If a mass of a proton is 1.67xx10^(-27)kg, how many protons will be pr...

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  8. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  9. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  10. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  11. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  12. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  13. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  14. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  15. Write the order of magnitude of the following : (i) 8 (ii) 49 (...

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  16. What is one astronomical unit ? Express it in metres . Write its or...

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  17. What is the order of magnitude of second in a day ?

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  18. In a submarine fitted with a SONAR, the time between the genretaion of...

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  19. A radar signal is beamed towards a planet and its echo is recived 7 mi...

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  20. A rock under water is 1595 m deep. Find the time in which an ultrasoni...

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  21. The angle of elevation of the top of a hill is 30^(@) from a point on ...

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