The maximum work done in Joules expanding 16g of oxygen at 300 K and occupying a volume of 7dm3 isothermally until the volume becomes 35 dm3 is a ×103 J

Maximum work is always obtained in a reversible process∴w=−2.303nRTlog⁡V2−V1∵nO2=(w/m)=(16/32);R=8.314J/K mole T=300K,V1=7dm3,V2=35dm3∴w=−2.303×(16/32)×8.314×300×log⁡357 =−2.01×103J