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False statement regarding second law of ...

False statement regarding second law of thermodynamics is

A

It is impossible to construct a machine working in cycles which transforms heat from a lower temperature region to higher temperature region without intervention of any external agency.

B

Heat cannot flow from a colder body to a hotter body on its own

C

Any spontaneous process taking place in isolated system, `DeltaS lt O`

D

All spontaneous processes are thermo dynamically irreversible and entropy of the system increases in all spontaneous processes.

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The correct Answer is:
C
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AAKASH SERIES-CHEMICAL THERMODYNAMICS-OBJECTIVE EXERCISE - 1 (ENTORPY AND GIBBS ENERGY)
  1. The incorrect statement according to second law of themodynamics is

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  2. Incorrect statement related to an irreversible process is

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  3. False statement regarding second law of thermodynamics is

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  4. Entropy of a system depends upon

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

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

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

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

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  9. For a spontaneous process, in a reaction

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

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

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  12. A process is spontaneous at all temperatures when

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  13. 2H(2(g)) + O(2(g)) rarr 2H(2)O((l)) , DeltaH= -ve and DeltaG= -ve. The...

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

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

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

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

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  18. A chemical reaction cannot occur at all if its

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

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

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