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An isolated system comprises the liquid ...

An isolated system comprises the liquid in equilibrium with vapours. At this stage, the molar entropy of the vapour is

A

less than that of liquid

B

more than that of liquid

C

equal to zero

D

equal to that of liquid

Text Solution

Verified by Experts

The correct Answer is:
D
In isolated systems at equilibrium `DeltaS=0`.
i.e., `(S_(P)-S_(R ))=0` , `S_(P)=S_(R )`
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
  1. The units of entropy are

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

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

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  4. For the gaseous reaction involving the complete combustion of iso-buta...

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  5. One of the following reactions involves decrease in entropy

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  6. When a solid changes into liquid, the entropy

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  7. The least random state of water system is

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  8. Which of the following process has negative value of DeltaS ?

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  9. Which of the following describes the criterion of spontaneity?

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  10. Which law of thermodynamics helps in calculating the absolute entropie...

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  11. When the egg is hard boiled, there is

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  12. For the reversible process, the value of DeltaS is given by the expres...

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  13. In any natural process

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  14. For which of the following cases is DeltaS=DeltaH//T

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  15. In a reversible process, Delta S(sys) + Delta S(surr) is

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  16. According to third law of thermodynamics, the entropy at 0 K is zero f...

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  17. Which of the following has highest entropy?

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  18. The total entropy change for a system and its surroundings increases, ...

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  19. Which of the following provide exceptions to third law of thermodynami...

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  20. Which thermodynamics property provides a measure of randomness in the ...

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