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Use the reaction data in the table below to select the answer choice that best describes this reaction.



Reaction Enthalpy Change
345.7 kJ/mol
Reaction Entropy Change
-25. 3 J/molK



This reaction is never spontaneous.


This reaction is spontaneous at all temperatures.


This reaction is spontaneous at low temperatures.


This reaction is spontaneous at high temperatures

Respuesta :

Answer: This reaction is never spontaneous

Explanation:

According to Gibbs equation:

[tex]\Delta G=\Delta H-T\Delta S[/tex]

[tex]\Delta G[/tex] = Gibb's free energy change

[tex]\Delta H[/tex] = enthalpy change

T = temperature

[tex]\Delta S[/tex] = entropy change

A reaction becomes spontaneous when [tex]\Delta G[/tex] = Gibb's free energy change is negative.

[tex]\Delta G=+ve-T(-ve)[/tex]

[tex]\Delta G=+ve+ve[/tex]

[tex]\Delta G=+ve[/tex]

Thus this reaction is never spontaneous

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