In heat exchanger, 50 kg of water is heater per minute from 50°C to 1 – McqOptions

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1.	In heat exchanger, 50 kg of water is heater per minute from 50°C to 110°C by hot gases which enter the heat exchanger at 250°C. The value of Cp for water is 4.186 kJ/kg.K and for air is 1 kJ/kg.K. If the flow rate of gases is 100 kg/min, the net change of enthalpy of air will be nearly
A.	17.6 MJ/min
B.	15.0 MJ/min
C.	12.6 MJ/min
D.	10.0 MJ/min
Answer» D. 10.0 MJ/min

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