JEE Main 2025 Chemistry question
Let us consider a reversible reaction at temperature, T. In this reaction, both ΔH and ΔS were observed to have positive values. If the equilibrium temperature is Te, then the reaction becomes spontaneous at:
Answer: (3)
Solution
ΔG = ΔH - TΔS. With both positive, ΔG becomes negative (spontaneous) at high temperature, i.e., T > Te