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Which of the following process has negat...

Which of the following process has negative value of `DeltaS`?

A

Dissolution of sugar in water

B

Stretching of rubber band

C

Decomposition of lime stone

D

Evaporation of water

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

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

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

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  4. For a spontaneous process, in a reaction

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

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

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  7. A process is spontaneous at all temperatures when

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  8. 2H(2(g)) + O(2(g)) rarr 2H(2)O((l)) , DeltaH= -ve and DeltaG= -ve. The...

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

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

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

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

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  13. A chemical reaction cannot occur at all if its

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

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

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

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

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  18. The favourable conditions for a spontaneous reaction are

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  19. A reaction has both DH and DS negative. The rate of reaction

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  20. At 27^@C the reaction, C6H(6(l)) + 15/2 O(2(g)) to 6CO(2(g)) + 3H2O(...

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