Determine the change in the entropy of the surroundings in $J^{-1}mo{l}^{-1}$ during

VAPORIZATION of a substance A at $298K$ :

$A(I)longrightarrowA(g)$

given the following thermodynamic data at $298K$ :

heat of vaporization ${}_{\text{v}\text{a}\text{p}}H=26\mathrm{.}0kJmo{l}^{-1}$

entropy of vaporization ${}_{\text{v}\text{a}\text{p}}S=85\mathrm{.}6J{K}^{-1}mo{l}^{-1}$