Chemistry - Thermochemistry Question with Solution | TestHub
ChemistryThermochemistryEnthalpy of ReactionMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
For the reaction at 25°C, X2O4(l) → 2XO2(g), Δ E° = 2.1 kcal and ΔS° = 20 cal/K.
The reaction is
Options:
Answer:
A
Solution:
The reaction is spontaneous because the standard Gibbs free energy change, Δ G°, is -2.7 kcal, which is a negative value. A negative Δ G° also indicates that the reaction is exergonic. This corresponds to option (a).
Stream:JEESubject:ChemistryTopic:ThermochemistrySubtopic:Enthalpy of Reaction
⏱ 2mℹ️ Source: QB
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