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Considering entropy (S) as a thermodynam...

Considering entropy (S) as a thermodynamic parameter, the criterion for the spontaneity of any process is

A

`Delta_("system")-DeltaS_("surroundings")gt0`

B

`DeltaS_("system")gt0" only"`

C

`DeltaS_("surroundings")gt0 " only"`

D

`DeltaS_("system")+DeltaS_("surroundings")gt0`

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Free enegry , G = H - TS , is state function that indicates whther a reaction is spontaneous or non-spontaneous. If you think of TS as the part of the system's enegry that is disordered already, then (H -TS) is the part of the system's energy that is still ordered and therefore free to cause spontaneous change by becoming disordered. Also, DeltaG = DeltaH - T DeltaS From the second law of thermodynamics, a reaction is spontaneous if Delta_("total")S is positive, non-spontaneous if Delta_("total")S is negative, and at equilibrium if Delta_('total")S is zero. Since, -T DeltaS = DeltaG and since DeltaG and DeltaS have opposite sings, we can restate the thermodynamic criterion for the spontaneity of a reaction carried out a constant temperature and pressure. IF DeltaG lt 0 , the reaction is spontaneous. If DeltaG gt 0 , the reaction is non-spontaneous. If DeltaG = 0 , the reaction is at equilibrium. Read the above paragraph carefully and answer the following questions based on the above comprehension. For the spontaneity of a reaction, which statement is true?

Free enegry , G = H - TS , is state function that indicates whther a reaction is spontaneous or non-spontaneous. If you think of TS as the part of the system's enegry that is disordered already, then (H -TS) is the part of the system's energy that is still ordered and therefore free to cause spontaneous change by becoming disordered. Also, DeltaG = DeltaH - T DeltaS From the second law of thermodynamics, a reaction is spontaneous if Delta_("total")S is positive, non-spontaneous if Delta_("total")S is negative, and at equilibrium if Delta_('total")S is zero. Since, -T DeltaS = DeltaG and since DeltaG and DeltaS have opposite sings, we can restate the thermodynamic criterion for the spontaneity of a reaction carried out a constant temperature and pressure. IF DeltaG lt 0 , the reaction is spontaneous. If DeltaG gt 0 , the reaction is non-spontaneous. If DeltaG = 0 , the reaction is at equilibrium. Read the above paragraph carefully and answer the following questions based on the above comprehension. One mole of ice si converted to liquid at 273 K, H_(2)O(s) and H_(2)O(l) have entropies 38.20 and 60.03 J mol^(-1) dg^(-1) . Enthalpy change in the conversion will be

How does T DeltaS determine the spontaneity of process?

State the thermodynamic conditions for spontaneous occurrence of a process.

For a spontaneous process :-

ALLEN-Thermodynamics And Thermo Chemistry-All Questions
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  3. Considering entropy (S) as a thermodynamic parameter, the criterion fo...

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  4. Which one of the follwing has DeltaS^@ greater than zero ?

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  6. The internal energy change when a system goes from state A to B is 40 ...

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  7. If at 298 K the bond energies of C-H, C-C, C=C and H-H bonds are respe...

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  8. The free energy change for the following reactions are given below ...

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  10. The heat required to raise the temperature of a body by 1^(@)C is call...

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  11. Which is intensive property ?

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  12. Which is correct about DeltaG?

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  13. DeltaE=0 for which process

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  14. Which of the following statements are true

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  15. Which of the following is true for spontaeous process :-

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  16. In which reaction(s), DeltaS in negative?

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  17. Which of the following value of heat of formation indicates that prod...

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  18. Enthalpy change for reaction 1//2H(2)(g)+1//2Cl(2)(g)toHCl(g) is...

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  19. For the reaction PCl(5)(g)toPCl(3)(g)+Cl(2)(g) where ΔH and ΔE represe...

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  20. In an adiabatic expansion of ideal gas

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