Q.For a reaction $A + B → C + D$ , if $ΔH$ is $-25 \text{ kcal}$ and $ΔS$ is $10 \text{ cal/K}$ , the reaction is spontaneous at:

All temperatures

Only high temperatures

Only low temperatures

No temperature

The correct solution involves applying the fundamental concept to derive the final value step by step...

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Q.For a reaction A+B→C+DA + B → C + DA+B→C+D, if ΔHΔHΔH is −25 kcal-25 \text{ kcal}−25 kcal and ΔSΔSΔS is 10 cal/K10 \text{ cal/K}10 cal/K, the reaction is spontaneous at: