A heat exchanger is used to heat 36 kg/hr of air originally at standard conditions (25 °C and 1 atm) to 125 °C using steam originally at 10 bar and 300 °C. Assume both streams maintain constant pressure and air to be an ideal gas with constant cp = 1.005 kJ/kg·K. No heat is lost to the surroundings. Find The minimum flow rate of the steam in kg/h

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