Q$2$: Saturated liquid water streams which have $80k\frac{g}{m}in$ at $25C(m_1)$ and $100k\frac{g}{m}in$ at $70C(m_2)$ are entering to the steam boiler. The exiting steam emerges from the steam boiler through a $5-cm$ pipe. Calculate the required heat input to the steam boiler in $k\frac{J}{m}in$ if the emerging steam is saturated at the boiler pressure $(1\mathrm{.}6$ MPa$).$ Neglect the kinetic energies of the liquid inlet streams.