alleryWhy can a fall in enthalpy not alone decide spontaneity?
ASome endothermic ones occur unaided
BAll exothermic ones are fast
CSome exothermic ones absorb heat
DEndothermic ones never occur
Answer & Solution
Correct answer: A. Some endothermic ones occur unaided
Reactions like forming NO2 from N2 and O2 absorb heat yet still proceed on their own.
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