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In which of the following entropy decrea...

In which of the following entropy decreases

A

Crystallization of sucrose from solution

B

Rusting of iron

C

Melting of ice

D

Vaporization of camphor

Text Solution

Verified by Experts

The correct Answer is:
A
Because decreases of randomness of molecules during crystallization, entropy decreases.
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ERRORLESS-THERMODYNAMICS AND THERMOCHEMISTRY-NCERT Based Questions (IInd & IIIrd Law of Thermodynamics and Entropy)
  1. Entropy change in a process where 1 litre of liquid He is poured into ...

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  2. The change of entropy (dS) is defined as

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  3. In which of the following entropy decreases

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  4. For conversion C (graphite)rarrC (diamond) the DeltaS is

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  5. If for a given substance, melting point is T(B) and freezing point is ...

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  6. Which of the following would be expected to have the largest antropy p...

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  7. Mixing of non-reacting gases is generally accompanied by

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  8. An irreversible process occurring isothermally in an isolated system l...

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  9. For chemical reactions, the calculation of change in entropy is normal...

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  10. For which of the following processes is DeltaS negative?

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  11. A container has hydrogen and oxygen mixture in ratio of 4 : 1 by weigh...

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  12. For the gas phase reactions PCl(5)(g) hArr PCl(3)(g) + Cl(2)(g) Whi...

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  13. Considering entropy (S) as a thermodynamics parameter, the criterion f...

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  14. Entropy changesh for the process, H(2)O(l) to H(2)O at normal pressure...

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  15. For an exothermic reaction, which is true

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  16. The entropy change can be calculated by using the expression DeltaS-(q...

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  17. A : For an isolated system Delta G = - TDeltaS("total") R: For an i...

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  18. For stable equilibrium, which of the following is/are true ?

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  19. A concentrated solution of copper sulphate, which is dark blue in c...

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  20. As isolated box, equally partitioned contains two ideal gases A and B ...

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