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The incorrect statement according to sec...

The incorrect statement according to second law of themodynamics is

A

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

B

All spontaneous processes are themo dynamically irreversible

C

Heat can be converted into work completely without casusing some permanent change in the system (or) surroundings

D

Perpetual motion machine of second kind is not possible

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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. For change in entropy, units are

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  2. In standard state the non spontaneous reaction among the following is

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  3. The incorrect statement according to second law of themodynamics is

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  4. Incorrect statement related to an irreversible process is

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  5. False statement regarding second law of thermodynamics is

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  6. Entropy of a system depends upon

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

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

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

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

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  11. For a spontaneous process, in a reaction

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

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

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  14. A process is spontaneous at all temperatures when

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  15. 2H(2(g)) + O(2(g)) rarr 2H(2)O((l)) , DeltaH= -ve and DeltaG= -ve. The...

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

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

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

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

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  20. A chemical reaction cannot occur at all if its

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