Air is heated from $25C$ to $100C$ prior to entering a furnace. The change in specific enthalpy, $widehat(H)=2\mathrm{.}1k\frac{J}{m}ol.$ The flow rate of air at the heater outlet is $1\mathrm{.}5\frac{m^3}{m}in$ and the air pressure is $1$atm. Calculate the heat$/$energy requirement, assuming ideal$-$gas behavior with negligible kinetic and potential energy changes.