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Which of the following conditions reagar...

Which of the following conditions reagarding a chemical process ensures its spontaneity at all temperature?

A

`Delta H gt 0, DeltaG lt 0`

B

`Delta H lt 0, DeltaS gt 0`

C

`Delta H lt 0, DeltaS lt 0`

D

`Delta H gt 0, DeltaS lt 0`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaG=DeltaH-TDeltaS,DeltaH=-ve, " "DeltaS=+ve`
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NARENDRA AWASTHI-THERMODYNAMICS-Exercise
  1. For a process to be spontaneous, DeltaG must be………… .

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  2. For a reaction to occur spontaneously

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  3. Which of the following conditions reagarding a chemical process ensure...

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  4. The free energy change DeltaG = 0, when

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  5. Which of the following conditions regarding a chemical process ensures...

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  6. Suppose that a reaction has DeltaH=-40kJ and DeltaS =- 50J//K. At what...

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  7. For isothermal expansion in case of an ideal gas :

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  8. What is the normal boiling point of mercury? Given : DeltaH (f)^(@)...

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  9. 19 gm of ice is converted into water at 0^(@)C and 1 atm. The entropie...

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  10. Using the listed [DeltaG(f)^(@) values] calculate DeltaG^(@) for the r...

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  11. From the following DeltaH^(@) and DeltaS^(@) values, predict which of ...

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  12. Calculate DeltaH(f)^(@) for Ubr(4) from the DeltaG^(@) of reaction and...

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  13. The entropies of H(2) (g) and H (g) are 130.6 and 114.6 J mol^(-1)K^(-...

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  14. Consider the DeltaG(f)^(@) and DeltaH(f)^(@) (kJ//mol) for the followi...

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  15. which of the folowing statement is correct?

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  16. Calculate DeltaG^(@) (kJ/mol) at 127^(@)C for a reaction with K("equil...

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  17. When reaction is at standard state at equilibrium, then

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  18. For the auto-ionization of water at 25^(@)C, H(2)O(l)iff H^(+)(aq)+OH^...

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  19. State Hess's law. Give two applications of it.

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  20. An imaginary reaction X rarr Y takes place in three steps X rarr A...

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