Calculate the standard molar entropy change for the formation of gaseous propane `(C_(3)

Calculate the standard molar entropy change for the formation of gaseous propane `(C_(3)H_(8))` at `293K`. `3C("graphite") +4H_(2)(g) rarr C_(3)H_(8)(g)` Standard molar entropies `S_(m)^(Theta) (JK^(-1)mol^(-1))`are: `C("graphite") = 5.7, H_(2)(g) = 130.7,C_(3)H_(5)(g) = 270.2`