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Heat of neutralisation of HF is :...

Heat of neutralisation of `HF` is `:`

A

`57.32kJ`

B

`gt57.32kJ`

C

`lt57.32kJ`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B

Due to extensive solvation of `F^(-)` ion on account of smaller size, observed value of heat of neutralisation of `HF` appears more.
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Heat of neutralisation of an acid is the amount of heat evolved when …………..of………………..is neutralised by…………..of the……………… .

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P BAHADUR-THERMOCHEMISTRY-Exercise 3a objective problems
  1. Heat of neutralisation of NaOH and HCl is -57.46 kJ // equivalent. The...

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  2. The lattice energy of solid NaCI is 180 kcal mol^(-1). The dissolution...

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  3. Heat of neutralisation of HF is :

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  4. The heat of atomisation of PH(3(g)) is 228kcal mol^(-1) and that of P(...

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  5. Given that : 2CO((g))+O(2(g))rarr2CO(2(g)),DeltaH^(@)=-P kJ C((s))...

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  6. For which reaction DeltaH=DeltaU ?

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  7. The enthalpy of hydrogenation of cyclohexene is -119.5kJ mol^(-1). If ...

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  8. For which of the following reactions heat of formation (Delta(f)H) is ...

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  9. For a hypothetical reaction , 3A rarr A(3) DeltaC(p) (i n J)=6.0+2.0...

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  10. In a flask, colourless N(2)O(4) is in equilibrium with brown-coloured ...

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  11. 1 mol e of ice melts at 0^(@)C and constant pressure of 1 atm by absor...

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  12. Which of the following statement is wrong for C((graph ite))rarr C((d...

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  13. 2 mol es of CO and 1 mol e of O(2) are allowed to react completely to ...

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  14. One mole of a gas is allowed to expand freely in vacuum at 27^(@)C. Th...

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  15. A system is provided 50xx10^(3)J energy and work done on the system is...

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  16. A piston exering a pressure of one atm rests on the surface of water a...

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  17. For a reaction DeltaC(p)=2.0+0.2T cal^(@)C and enthalpy of reaction at...

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  18. The latent heat of vaporisation of liquid is 10kcal mol^(-1) at 1 atm ...

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  19. One gram sample of NH(4)NO(3) is decomposed in a bomb calorimeter. The...

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  20. Bond dissociation enthalpy of H(2),Cl(2) and HCl are 434,242 and 431kJ...

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