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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 

a
300 Rlog102
b
81 Rloge2
c
900 Rlog102
d
2.3×900 Rlog102

detailed solution

Correct option is D

W=μRTloge⁡V2V1=mMRTloge⁡V2V1=2.3×mMRTlog10⁡V2V1=2.3×9632R(273+27)log10⁡14070=2.3×900Rlog10⁡2

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In an isothermal reversible expansion if the volume of 96gm oxygen at 270C is  increases from 70 liters to 140 liters, then the work done by the gas will be
 


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