Psychrometry & Moist Air Thermodynamics

In the psychrometric chart, air enters at enthalpy $h_1 = 55.0\text{ kJ/kg dry air}$ and leaves the sensible heater at $h_2 = 92.5\text{ kJ/kg dry air}$. If the total thermal power supplied by the heater is $150\text{ kW}$, determine the required mass flow rate of dry air in $\text{kg/s}$ (round off to two decimal places).