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Heat of formation, Delta H(f)^(@) of an ...

Heat of formation, `Delta H_(f)^(@)` of an explosive compound like `NCl_(3)` is -

A

positive

B

negative

C

zero

D

positive or negative

Text Solution

Verified by Experts

The correct Answer is:
A
Since `DeltaH_(f)^(@)` is positive, it has greater heat content and is explosive.
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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  3. Heat of formation, Delta H(f)^(@) of an explosive compound like NCl(3)...

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  4. The products of combustion of an aliphatic thiol (RSH) at 298 K are

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

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  6. Which of the following statements is correct?

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

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

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

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

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

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

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

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

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  17. Joule Thomson coefficient is given by the expression

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  18. Entropy of system depends upon

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  19. The units of entropy are

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

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