NEET Physics Laws of Thermodynamics MCQ Question
In thermodynamics, which condition is necessary for a chemical reaction with a positive enthalpy change and positive entropy change to be spontaneous?
Temperature must be high enough to make T∆S > ∆H
Temperature must be low enough to make T∆S < ∆H
Temperature must be zero to make T∆S = ∆H
Temperature does not affect spontaneity
Correct Answer
Detailed Explanation
According to the NCERT context, a reaction with positive enthalpy and entropy changes can be spontaneous if T∆S is large enough to outweigh ∆H, which requires a high temperature.
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