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How does the spontaneity of an exothermi...

How does the spontaneity of an exothermic reaction depend on temperature when (i) `DeltaS gt0 and (ii) DeltaS lt0`?

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How does the spontaneity of an endothermic reaction depend on temperature when (i) DeltaS gt0 and (ii) DeltaS lt0 ?

Explain: in a chemical reaction if (i) DeltaH lt 0 and DeltaS gt0 , the spontaneity of the reaction is independent of temperature. (ii) DeltaH gt0 and DeltaS gt0 , the spontaneity of the reaction is dependent of temperature.

Which condition does not satisfy the spontaneity criteria ofa reaction at constant temperature and pressure (1) Delta H lt 0, DeltaS lt 0 , (2) Delta Hgt0,DeltaS lt 0 (3) DeltaH gt 0,DeltaS gt0 , (4) DeltaH lt0,DeltaS gt0 ?

Which of the following conditions favours the spontaneity of a reaction at a constant temperature and pressure? DeltaH gt0, DeltaH lt 0, DeltaS gt0, DeltaS lt 0 .

How does the rate of a reaction depends on surface area of the reactant?

At 25^(@)C and 1 atm pressure, for the reaction 3O_(2)(g)to2O_(3)(g)," "DeltaH=286kJ and DeltaS=-137.2J*K^(-1) . Is this reaction spontaneous? Does the spontaneity of thir reaction depend on temperature? Is the reverse reaction spontaneous ? If so, then why? does the spontaneity of the reverse reaction depend on temperature?

At a given temperature and pressure, for a chemical reaction DeltaH lt 0 & DeltaS lt 0 . Is the spontaneously of this reaction dependent upon temperature? If it depends and if the reaction reaches equilibrium at a temperature of T_(e), then will the reaction be spontaneous below or above T_(e) ?

DeltaG of the system alone provides a criterion for the spontaneity of a process at constant temperature & pressure, DeltaG system lt 0 (spontaneous) DeltaG system = 0 (equilibrium) DeltaG system gt 0 {(non-spontaneous) Again DeltaG^@ is related to the equilibrium constant as follows : DeltaG^@ = 2.303 RT log K_e If both DeltaH and Delta S are negative, the reaction will be spontaneous

If the value of DeltaH and DeltaS are of following type, then at what condition a reaction will occur spontaneously? (i) DeltaH gt0 and DeltaSgt0 (ii) DeltaH lt0 and DeltaS gt0

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  13. (i) What is the relation between Gibbs free energy change and spontane...

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  14. If the value of DeltaH and DeltaS are of following type, then at what ...

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  15. Under which of the following conditions a reaction will occur spontane...

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  16. How does the spontaneity of an endothermic reaction depend on temperat...

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  17. How does the spontaneity of an exothermic reaction depend on temperatu...

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  18. There is not certainty that the reaction will be spontaneous even if D...

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  19. Give the mathematical definition of entropy change. Discuss the relati...

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  20. (i) Spontaneity of a process can be determined from the entropy change...

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