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(A): For a process to be spontaneous, th...

(A): For a process to be spontaneous, the change in free energy must be negative. (R): The change in entropy for a process must always be positive if it is spontaneous. 

A

Both A and R are true and R is thecorrect explanation

B

Both A and R are true but R is not the  correctexplanation of A

C

A is true but R is false

D

A is false but R is true

Text Solution

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

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

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

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  4. The favourable conditions for a spontaneous reaction are

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

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

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

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

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

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  10. What of the following relationship is correct?

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

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

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

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

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

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

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

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  18. The correct statement regarding entropy is

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  19. The correct thermodynamic conditions for the spontaneous reaction at a...

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  20. The value of DeltafG^(Theta) for formation of Cr2 O3 is – 540 kJ "mo...

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