Chemistry - Thermodynamics - II Question with Solution | TestHub
ChemistryThermodynamics - IIGibb's Free EnergyMedium2 minQB
ChemistryMediumstatement
Statement 1: A reaction which is spontaneous and accompanied by decrease of randomness must be exothermic.
Statement 2: All exothermic reactions are accompanied by decrease of randomness.
Options:
Answer:
C
Solution:
Δ Ssys<0 and Δ G=Δ H-TΔ S<0 force Δ H<-T|Δ S|<0: I correct. Exothermic reactions can have Δ S>0 (e.g. C(s)+O2→ CO2 has Δ S≈0, and explosive decompositions releasing gases have Δ S>0): II incorrect. Answer (c).
Stream:JEESubject:ChemistryTopic:Thermodynamics - IISubtopic:Gibb's Free Energy
⏱ 2mℹ️ Source: QB
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