Chemistry - Thermodynamics - II Question with Solution | TestHub
ChemistryThermodynamics - IICalculation of DSMedium2 minQB
ChemistryMediumsingle choice
Assuming ideal gas behaviour, the ΔS for the isothermal mixing of 0.5 mole of N₂ and 0.5 mole of O₂ is (ln 2 = 0.7)
Options:
Answer:
A
Solution:
ΔSmix = −R(x₁ ln x₁ + x₂ ln x₂) = −R(0.5 ln 0.5 + 0.5 ln 0.5) = R ln 2 = 2 × 0.7 = +1.4 cal/K. Matches (a).
Stream:JEESubject:ChemistryTopic:Thermodynamics - IISubtopic:Calculation of DS
⏱ 2mℹ️ Source: QB
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