Chemistry - Thermodynamics - I Question with Solution | TestHub
ChemistryThermodynamics - IAdiabatic Process/PolytropicHard2 minQB
ChemistryHardmultiple choice
Helium (γ = 5/3) and nitrogen (γ = 7/5), one mole each, start from the same P, V, T and undergo reversible adiabatic changes. Which of the following is/are true at the starting state?
Options:(select one or more)
Answer:
A, B, C
Solution:
|dP/dV| = γ P/V, so the ratio He:N2 is (5/3)/(7/5) = 25/21: (a) true. |dV/dT| = V/[T(γ - 1)]: He 1.5, N2 2.5 in units of V/T, so N2 is larger: (b) true. |dT/dV| = (γ - 1)T/V: He 2/3, N2 2/5, ratio 5/3: (c) true. dP/dT = (γ)/(γ - 1)P/T: He 2.5, N2 3.5, so He is smaller: (d) false. Ans: (a), (b), (c).
Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:Adiabatic Process/Polytropic
⏱ 2mℹ️ Source: QB
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