Chemistry - Thermodynamics - II Question with Solution | TestHub
ChemistryThermodynamics - IICalculation of DSMedium2 minQB
ChemistryMediumsingle choice
The molar entropy of a constant volume sample of neon at 500 K if it is 46.2 cal/K-mol at 250 K, is (ln 2 = 0.7)
Options:
Answer:
C
Solution:
Neon is monatomic, CV = 3R/2 = 3 cal/K-mol (R = 2 cal/K-mol). Δ S = CVln(500/250) = 3 × 0.7 = 2.1 cal/K-mol. S500 = 46.2 + 2.1 = 48.3 cal/K-mol. Matches (c).
Stream:JEESubject:ChemistryTopic:Thermodynamics - IISubtopic:Calculation of DS
⏱ 2mℹ️ Source: QB
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