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One of the following reactions involves ...

One of the following reactions involves in decrease of entropy 

A

Sublimation of dry ice

B

Crystallisation of salt from brine (aq)

C

Burning of rocket fuel

D

Decomposition of gaseous `N_2O_4`

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The correct Answer is:
B
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AAKASH SERIES-CHEMICAL THERMODYNAMICS-OBJECTIVE EXERCISE - 1 (ENTORPY AND GIBBS ENERGY)
  1. False statement regarding second law of thermodynamics is

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  2. Entropy of a system depends upon

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  3. One of the following reactions involves in decrease of entropy

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  4. The least random state of H(2)O system is

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  5. For the reaction I(2(g)) hArr I(2(s)), Delta H= -ve. Then choose the c...

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

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  7. For a spontaneous process, in a reaction

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  8. Some statements are given with regard to entropy. The incorrect statem...

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  9. For an irreversible process, the value of [DeltaS("(system)") + DeltaS...

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  10. A process is spontaneous at all temperatures when

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  11. 2H(2(g)) + O(2(g)) rarr 2H(2)O((l)) , DeltaH= -ve and DeltaG= -ve. The...

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  12. H((aq))^(+) + OH((aq))^(-) rarr H(2)O((l)) , Delta H = -ve and Delta G...

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  13. Among the following what is necessary condition for spontanity of a pr...

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  14. Which of the following is the condition for a non spontaneous reaction...

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  15. Based on the third law of themodynamics, the entropy can be obtained u...

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  16. A chemical reaction cannot occur at all if its

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  17. An equilibrium reaction X + Y hArr W +Z, Delta H= +ve is spontaneous i...

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  18. For the process Dry ice rarr CO(2(g))

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  19. For which of the process, Delta S is negative?

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  20. The process of evaporation of a liquid is accompanised by (A) Increa...

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