Chemistry - Thermodynamics - I Question with Solution | TestHub
ChemistryThermodynamics - IAdiabatic Process/PolytropicMedium2 minQB
ChemistryMediumstatement
Statement 1: Due to adiabatic expansion, the temperature of an ideal gas always decreases.
Statement 2: For an adiabatic process, Δ U = w.
Options:
Answer:
D
Solution:
II is the first law with q=0: correct. In an adiabatic expansion against vacuum (free expansion) w=0, so Δ U=0 and T of an ideal gas does not change. "Always decreases" is therefore incorrect. Answer (d).
Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:Adiabatic Process/Polytropic
⏱ 2mℹ️ Source: QB
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