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Chemistry - Thermodynamics - I Question with Solution | TestHub

ChemistryThermodynamics - IFirst law of ThermodynamicsMedium2 minPYQ_2017
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A gas undergoes change from stateAto stateB. In this process, the heat absorbed and work done by the gas is5 J and 8 J, respectively. Now gas is brought back toAby another process during which3 Jof heat is evolved. In this reverse process ofB to A.

Question diagram: A gas undergoes change from state A to state B . In this pro

Options:

Answer:
B
Solution:

for A to Bq=5W= 8 J,ΔUAB=dq+dw=58ΔUAB=3



for B to AΔUBA=dq+dwΔUBA= +33=-3 +WBA       WBA=6 J

Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:First law of Thermodynamics
2mℹ️ Source: PYQ_2017

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