MOLES of sucrose \[=\frac{34.2}{342}=0.1\] \[-{{(\DELTA G)}_{T.P}}=\]USEFUL WORK done by the system \[-\Delta G=-\Delta H+T\Delta S\] \[=+(6000\times 0.1)+\frac{180\times 0.1\times 300}{1000}\] \[=605.4\text{ }kJ\]