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For a spontaneous process the correct st...

For a spontaneous process the correct statement is

A

Entropy of the system always increase

B

Free energy of the system always increases

C

Total entropy change is always negative

D

Total entropy change is always positive

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The correct Answer is:
D
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ALLEN-THERMODYNAMICS -EXERCISE -1A
  1. When you make ice cubes, the entropy of water

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  2. For a phase change H(2)O(l) to H(2)O (g)

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  3. For a spontaneous process the correct statement is

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  4. The enthalpy change (Delta H) for the reaction, N(2)(g)+3H(2)(g)to 2NH...

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  5. Consider the following reactions: (a) H(aq)^(+) +OH(aq)^(-) to H(2)O...

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  6. Given that bond energies of H–H and Cl–Cl are 430 kJ mol^(-1) and 240...

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  7. Bond dissociation enthalpy of H(2), Cl(2) and HCl are 434, 242 and 431...

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  8. For the gas phase reaction, PCl(5)(g) hArr PCl(3)(g) + Cl(2)(g) Wh...

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  9. Which of the following are not a constant value between two given ther...

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  10. From the following bond energies: H-H bond energy: 431.37KJmol^(-1) ...

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  11. The values of DeltaH and DeltaS for the reaction, C("graphite")+CO(2...

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  12. For vaporization of water at 1 atmospheric pressure the values of Delt...

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  13. Three moles of an ideal gas expanded spontaneously into vaccum. The wo...

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  14. The following two reactions are known : Fe(2)O(3)(s) + 3 CO(g) rightar...

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  15. Standard entropies of X(2), Y(2) and XY(3) are 60, 40 and 50 JK^(–1) m...

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  16. Intensive property is :-

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  17. In which of following there is decrease in entropy :-

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  18. Which of the following is not a state function?

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  19. If the enthalpy change for the transition of liquid water to steam is ...

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  20. Enthalpy change for the reaction, 4H(g) to 2H2(g) is -869.6 kJ Th...

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