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Per NCERT Table 5.4, a reaction with ΔH > 0 AND ΔS > 0 is spontaneous under which condition?
AOnly at HIGH temperatures (when TΔS > ΔH outweighs the positive enthalpy)
BOnly at low T
CNever
DAt all T
Answer & Solution
Correct answer: A. Only at HIGH temperatures (when TΔS > ΔH outweighs the positive enthalpy)
Per NCERT Table 5.4, ΔH(+) + ΔS(+): becomes spontaneous when T is large enough that TΔS overcomes ΔH.
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