Current Attempt in Progress

A Thomas flowmeter is a device in which heat is transferred at a measured rate from an electric coil to a flowing fluid, and the flow

rate of the stream is calculated from the measured increase of the fluid temperature. Suppose a device of this sort is inserted in a

stream of nitrogen, the current through the heating coil is adjusted until the wattmeter reads $1\mathrm{.}25kW,$ and the stream temperature

goes from $32\mathrm{.}5C$ and $110$kPa before the heater to $38\mathrm{.}7C$ and $110$kPa after the heater.

If the specific enthalpy of nitrogen is given by the formula

hat$(H)(k\frac{J}{k}g)=1\mathrm{.}04(T(C)-25\mathrm{.}0)$

what is the volumetric flow rate of the gas $(\frac{L}{s}$ upstream of the heater $($i$.$e$.$ at $32\mathrm{.}5C$ and $110$kPa $)?$

$\frac{L}{s}$