Question

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

Answer 1

Answer: This reaction is never spontaneous

Step-by-step explanation:

According to Gibbs equation:

`\Delta G=\Delta H-T\Delta S`

`\Delta G` = Gibb's free energy change

`\Delta H` = enthalpy change

T = temperature

`\Delta S` = entropy change

A reaction becomes spontaneous when
`\Delta G` = Gibb's free energy change is negative.

`\Delta G=+ve-T(-ve)`

`\Delta G=+ve+ve`

`\Delta G=+ve`

Thus this reaction is never spontaneous