Thermodynamics Question 197

Question: In an isothermal reversible expansion, if the volume of 96 gm of oxygen at 27°C is increased from 70 litres to 140 litres, then the work done by the gas will be

Options:

A) 300Rlog102

B) 81Rloge2

C) 900Rlog102

D) 2.3×900Rlog102

Show Answer

Answer:

Correct Answer: D

Solution:

W=μRTlogeV2V1

=(mM)RTlogeV2V1=2.3×mMRTlog10V2V1

=2.3×9632R(273+27)log1014070=2.3×900Rlog102



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