Refrigerant$-134$a at $700$kPa,$70\backslash$deg C$,$ and $7\mathrm{.}8$k$($g$)/($m$)$in is cooled by water in a condenser until it

exists as a saturated liquid at the same pressure. The cooling water enters the condenser at

$300$ kPa and $15\backslash$deg C and leaves at $25\backslash$deg C at the same pressure. Determine the mass flow rate of

the cooling water required to cool the refrigerant.