The above image represents a heating curve for $6\mathrm{.}0g$ of water $(18\mathrm{.}022\frac{g}{m}ol).$ The values of $x,y,$ and $z$ are provided below, and indicate the heat involved with

each region of the curve. Based on the given information determine the enthalpy of fusion for water $(H_{\text{f}\text{u}\text{s}})$ with units of kJ$/$mol$.$ Enter only your numeric

answer, do not include units with your answer. Do not use scientific notation and enter your answer with $1$ decimal place.

$x=-794\mathrm{.}7J$

$y=-254\mathrm{.}0J$

$z=-741\mathrm{.}6J$