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If a reaction involves only solids and l...

If a reaction involves only solids and liquid, which of the following is true

A

`DeltaH lt DeltaE`

B

`DeltaH = DeltaE`

C

`DeltaH gt DeltaE`

D

`DeltaH=DeltaE+RT Delta n`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaH=DeltaE+PDeltaV`. For solids and liquids, `DeltaV=0`. Thus `DeltaH=DeltaE`.
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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  2. C("diamond")toC("Graphite"), DeltaH=-ve. Then shows that

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  3. If a reaction involves only solids and liquid, which of the following ...

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  4. Mechanical work is specially important in systems that contain

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  5. The law formulated by Nernst is

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  6. Heat exchanged in a chemical reaction at constant temperature and pres...

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  7. Heat of combustion DeltaH^(@) for C(s),H(2)(g) and CH(4)(g) are 94, -6...

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  8. The enthalpy of formation of ammonia is - 46.2 mol^(-1). The enthalpy ...

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  9. The molar heat capacity of water at constant pressure, C(P) , is 75 JK...

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  10. What is the entropy change (in JK^(-1)mol^(-1)) when one mole of ice i...

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  11. For which one of the following equation is DeltaH(reaction)^(@) equal ...

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  12. If a 298K the bond energies of C-H,C-C,C=C and H-H bonds are respectiv...

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  13. The enthalpy change for a reaction does not depend upon:

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  14. In an irreversible process taking place at constant T and P and in whi...

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  15. The internal energy change when a system goes fromk state A to B is 40...

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  16. The correct relationship between free energy change in a reaction and ...

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  17. The enthalpies of formation of Al(2)O(3) and Cr(2)O(3) are -1596KJ and...

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  18. Enthalpy of formation of HF and HCl are -161 kJ and -92 kJ respectivel...

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  19. Heat liberated when 100 mL of 1 N NaOH is neutralised by 300 mL of 1 N...

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  20. Which of the following has DeltaS^(@) greater than zero

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