for the steam power plant,

if you knowing the following

$h1=410k\frac{J}{k}g$

$h_2=470k\frac{J}{k}g$

$h_3=2950k\frac{J}{k}g$

$h_4=2540k\frac{J}{k}g$

$m=3\mathrm{.}5k\frac{g}{s}$

find the following

$1-$Qin $[$kW$]$

$2-$Qout $[$kW$]$

$3-$Win $kW$

$4-$Wout $[$kW$]$

$5.$ Efficency $\%$

$?$