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Textbook Expert
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16 Nov 2021

Given information

The given table is,

ΔH ΔS ΔG Low Temperature  High Temperature
- + - Spontaneous ..........................
- - Temperature dependent .......................... ..........................
+ + ........................... .............................  Spontaneous
........................... - .......................... Nonspontaneous Nonspontaneous

 

 

Step-by-step explanation

Step 1.

The Gibb’s free energy, , of the reaction is calculated as,

 

The reaction is spontaneous for the negative value of Gibb’s free energy. Thus, for the negative value of the enthalpy change and entropy change, the value of temperature should be positive. Thus, at high temperature, the reaction takes place spontaneously. For the positive values of enthalpy change and entropy change, the reaction is spontaneous at high temperature. For the Gibb’s free energy with positive value, the reaction is non-spontaneous at all temperatures.

 

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