Chemistry - Thermodynamics - I Question with Solution | TestHub
ChemistryThermodynamics - IAdiabatic Process/PolytropicMedium2 minQB
ChemistryMediumstatement
Statement 1: The temperature of a non-ideal gas does not change in adiabatic free expansion.
Statement 2: In adiabatic free expansion of ideal as well non-ideal gas, q = w = Δ U = 0.
Options:
Answer:
D
Solution:
Free expansion: Pext=0⇒ w=0; adiabatic ⇒ q=0; hence Δ U=0 for any gas, so II is correct. For a non-ideal gas U depends on both T and V, so at constant U a change in volume changes T (Joule effect, normally cooling). I is incorrect. Answer (d).
Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:Adiabatic Process/Polytropic
⏱ 2mℹ️ Source: QB
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