Chemistry - Thermodynamics - II Question with Solution | TestHub

ChemistryThermodynamics - IICalculation of DSMedium2 minQB
ChemistryMediumsingle choice

An amount of 1.5 mol of argon is in a cubical container of edge a at 27°C. The gas is transferred completely into a cubical container of edge 3a at the same temperature. What is the entropy change if the process is reversible and the gas behaves ideally?

Options:

Answer:
C
Solution:

Volume ratio = (3a)3/a3 = 27. Δ S = nRln 27 = 1.5 × 8.314 × 3.296 = 41.10 J/K (positive, expansion). Matches (c).

Stream:JEESubject:ChemistryTopic:Thermodynamics - IISubtopic:Calculation of DS
⏱ 2mℹ️ Source: QB

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