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For the transition C("(diamond)") rarr C...

For the transition `C_("(diamond)") rarr C_("(graphite)"), DeltaH=-1.5 kJ`. It follows that

A

graphite is stabler than diamond

B

diamond is stabler than graphite

C

graphite is endothermic

D

diamond is exothermic

Text Solution

Verified by Experts

The correct Answer is:
A
Since graphite is formed with the release of energy, it has less energy and is more stable.
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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  3. For the transition C("(diamond)") rarr C("(graphite)"), DeltaH=-1.5 kJ...

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  4. Which of the following statements is correct?

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

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

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

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

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

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

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

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

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

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

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  15. Joule Thomson coefficient is given by the expression

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  16. Entropy of system depends upon

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  17. The units of entropy are

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

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

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