Chemistry - Thermodynamics - II Question with Solution | TestHub
ChemistryThermodynamics - IIGibb's Free EnergyMedium2 minQB
ChemistryMediumstatement
Statement 1: Decrease in free energy causes spontaneous reaction.
Statement 2: Spontaneous reactions are invariably exothermic.
Options:
Answer:
C
Solution:
At constant T and P, Δ G<0 is the criterion for spontaneity: I correct. Spontaneity depends on Δ G=Δ H-TΔ S; endothermic reactions with large positive Δ S at high T are spontaneous (e.g. ice melting above 0 degC). II is incorrect. Answer (c).
Stream:JEESubject:ChemistryTopic:Thermodynamics - IISubtopic:Gibb's Free Energy
⏱ 2mℹ️ Source: QB
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