Chemistry - Thermodynamics - I Question with Solution | TestHub
ChemistryThermodynamics - IAdiabatic Process/PolytropicMedium2 minQB
ChemistryMediumsingle choice
Statement-1: Due to adiabatic expansion, the temperature of an ideal gas always decreases.
Statement-2: For an adiabatic process, ΔU = w.
Options:
Answer:
D
Solution:
Statement-1 is incorrect because in an adiabatic process temperature does not always decrease; it decreases only in expansion and increases in compression.
Statement-2 is correct because in an adiabatic process heat exchange is zero (q = 0), so from the First Law of Thermodynamics, ΔU = w.
Since Statement-1 is false but Statement-2 is true, the correct option is (D).
Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:Adiabatic Process/Polytropic
⏱ 2mℹ️ Source: QB
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