Chemistry - Thermodynamics - II Question with Solution | TestHub

ChemistryThermodynamics - IIAdiabatic Process/PolytropicMedium2 minPYQ_2020
ChemistryMediumsingle choice

The entropy change when an ideal gas under atmospheric condition at room temperature is allowed to expand from 0.5L to 1.0L and also is simultaneously heated to 373K will be
(Given: C v,m =12 .50 J K 1 mol 1 and log1.25=0.1 )

Options:

Answer:
A
Solution:

n=PVRT=0.02moles
ΔS=nRln V 2 V 1 + nC v,m ln T 2 T 1
ΔS=0.12+0.06
ΔS=0.18 JK 1

Stream:NTA_ABHYASSubject:ChemistryTopic:Thermodynamics - IISubtopic:Adiabatic Process/Polytropic
2mℹ️ Source: PYQ_2020

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