$$ \begin{aligned} & \Delta \mathrm{S}_{\text {tus }}=\frac{\Delta \mathrm{H}_{\text {tus }}}{273}=\frac{334}{273}=1.22 \\ & \Delta \mathrm{~S}_{\text {vap }}=\frac{\Delta \mathrm{H}_{\text {vap }}}{373}=\frac{2491}{373}=6.67 \\ & \Delta \mathrm{~S}_{\text {water }}=\frac{\mathrm{mCdT}}{\mathrm{~T}}=\mathrm{mCln}\left(\frac{\mathrm{~T}_2}{\mathrm{~T}_1}\right) \\ & =4.2 \times \ln \left(\frac{273}{273}\right)=1.31 \\ & \Delta \mathrm{~S}_{\text {vap }}=\mathrm{mCln}\left(\frac{\mathrm{~T}_2}{\mathrm{~T}_1}\right) \\ & =2 \times \ln \left(\frac{383}{373}\right)=0.05 \end{aligned} $$ Total entropy change $$ \Delta \mathrm{S}=9.26 \mathrm{~kJ} \mathrm{~kg}^{-1} \mathrm{~K}^{-1} $$