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Define the following terms: (i) Standard...

Define the following terms: (i) Standard enthalpy of atomisation of an element (ii) Bond dissociation energy (iii) bond enthalpy.

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CHHAYA PUBLICATION-CHEMICAL THERMODYNAMICS-WARM UP EXERCISE
  1. At 25^(@)C if the standard enthalpies of formation of MX(s), M^(+)(aq)...

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  2. Draw the Born-Haber cycle for the formation of LiF(s) from its element...

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  3. Define the following terms: (i) Standard enthalpy of atomisation of an...

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  4. The standard heat of sublimation of sodium metal is 108.4kJ*mol^(-1). ...

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  5. At 25^(@)C, the bond dissociation energy of N(2)(g) is 946 kJ*mol^(-1)...

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  6. A-B bonds present in AB(3)(g) molecule undergo stewise dissociation by...

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  7. Will the transformation of ice into water be spontaneous at -2^(@)C an...

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  8. Water remains in equilibrium with its vapour at 100^(@)C and 1 atm. Wi...

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  9. Is rusting of iron a spontaneous process?

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  10. What is entropy of a system? Give its mathematical definition. What is...

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  11. What is meant by the entropy change of a system in a chemical reaction...

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  12. Give reasons: (i) The change in entropy of a system in a cyclic proces...

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  13. Define (i) Entropy of fusion (ii) Entropy of vaporisation (iii) Standa...

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  14. What are the signs (+ or -) of the entropy changes of the surroundings...

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  15. If the process AtoB occurs reversible, then the change in entropy of t...

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  16. Heat is not exchange between the system and its surroundings during fr...

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  17. What will be the sign of Delta(sys) (+ve or -ve) in the process of-(i)...

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  18. The following changes are performed on 1 mol of N(2) gas- (i) Pressu...

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  19. Write the SI unit of entropy.

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  20. For a process in an isolated system, what are the conditions of sponta...

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