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The change in Gibbs free energy of the s...

The change in Gibbs free energy of the system along provides a criterion for the spontaneity of a process at constant temperature and pressure. A change in the free energy of a sytem at constant temperature and pressure will be: `DeltaG_("system") = DeltaH_("system") - T DeltaS_("system")`
The free energy for a reaction having `Delta H= 31400` cal, `DeltaS= 32` cal `K^(-1) mol^(-1)` at `1000^(@)C` is

A

`-9336` cal

B

`-7386` cal

C

`-1936` cal

D

`+9336` cal

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The correct Answer is:
A
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AAKASH SERIES-CHEMICAL THERMODYNAMICS-Practice Sheet- Exercise-III
  1. Some statements are given with regard to entropy. The incorrect statem...

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

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

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  4. When charcoal burns in air signs of DeltaH and DeltaS "are " 2C((s)) +...

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  5. DeltaS("surr") " for " H(2) + 1//2O(2) rarr H(2)O, DeltaH -280 kJ at 4...

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  6. The direct conversion of A to B is difficult, hence it is carried out ...

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

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  8. Entropy of a system depends upon

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  9. Which processes involve increase in entropy?

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  10. Which statements are correct as per laws of thermodynamics?

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  11. For A rarr B, DeltaH= 3.5 kcal mol^(-1), DeltaS= 10 cal mol^(-1) K^(-1...

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  12. The change in Gibbs free energy of the system along provides a criteri...

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  13. The change in Gibbs free energy of the system along provides a criteri...

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  14. The thermodynamic property that measures the extent of molecular disor...

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  15. The thermodynamic property that measures the extent of molecular disor...

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  16. The thermodynamic property that measures the extent of molecular disor...

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  17. Match the following columns

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  18. Match the following columns

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  19. A quantity of 4.0 moles of an ideal gas at 20^(@)C expands isothermall...

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  20. In how many of the following entropy increases? {:((a) N(2(g)) + 3H(...

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