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

For the process Dry ice `rarr CO_(2(g))`

A

`DeltaH` is positive and `DeltaS` is negative

B

Both `DeltaH and DeltaS` are negative

C

Both `DeltaH and DeltaS` are positive

D

`DeltaH` is negative whereas `DeltaS` is positive

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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. A chemical reaction cannot occur at all if its

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

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

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

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

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  6. The favourable conditions for a spontaneous reaction are

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

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

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  9. Although the dissolution of ammonium chloride in water is an endotherm...

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  10. For the precipitation reaction of Ag^(+) ions with NaCl, which of the ...

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  11. Which one of the following has Delta S^(0) greater than zero?

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  12. What of the following relationship is correct?

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  13. For a reaction R(1), Delta G = x KJ mol^(-1). For a reaction R(2), Del...

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  14. {:("LIST - 1","LIST - 2"),("A) "Hp > HR,"1) Exothermic"),("B) "PDeltaV...

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  15. {:("List - I (Freezing of water) ","List - II "),("A) Water at - "10^...

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  16. (A): The entropy of the universe is continuously increasing. (R): Al...

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  17. (A): For a process to be spontaneous, the change in free energy must b...

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  18. (A): Entropy of a perfect crystalline substance at absolute zero is ze...

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  19. Which one ofthe following is correct for a spontaneous reaction at any...

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  20. The correct statement regarding entropy is

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