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Which of the following statements is cor...

Which of the following statements is correct?

A

For exothermic reactions, `DeltaH` is positive

B

For endothermic reactions, `DeltaH` is negative

C

The `DeltaH_(Neutralization)` for strong acid and strong base is always the same

D

The enthalpy of fusion, `DeltaH_(fus)` is negative

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The correct Answer is:
C
The enthalpy of neutralisation `(DeltaH_(necut.)` for a strong acid and strong base is always constant.
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
  1. The products of combustion of an aliphatic thiol (RSH) at 298 K are

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  2. For the transition C("(diamond)") rarr C("(graphite)"), DeltaH=-1.5 kJ...

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  3. Which of the following statements is correct?

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  4. The heat liberated in the following reaction H^(+)(aq)+OH^(-)(aq) to...

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  5. For the neutralisation of 1 mol of H(2)SO(4) with 2 mols of NaOH in d...

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  6. Enthalpy of neutralisation of all strong acids strong bases has the sa...

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  7. A solution of 200 mL of 1 M KOH is added to 200 mL of 1 M HCl and the ...

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  8. The heats of neutralisation of four acids a, b, c and d when neutralis...

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  9. Enthalpy of neutralisation of NaOH with H(2)SO(4) is -57.3kJ mol^(-1) ...

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  10. The temperature at which the Joule Thomson coefficient changes sign is...

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  11. In case of an ideal gas, Joule Thomson effect is

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  12. Which of the following gases show a heating effect when allowed to exp...

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  13. When a gas is allowed to expand from a region of extremly high pressur...

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  14. Joule Thomson coefficient is given by the expression

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  15. Entropy of system depends upon

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  16. The units of entropy are

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  17. Ammonium chloride when dissolved in water leads to a cooling sensation...

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  18. An isolated system comprises the liquid in equilibrium with vapours. A...

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  19. For the gaseous reaction involving the complete combustion of iso-buta...

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  20. One of the following reactions involves decrease in entropy

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