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The cooled water from a cooling tower returns to the condenser at 21°C at a mass flow rate of 54.9 kg/s. The air entering at state 1 has h₁ = 43 kJ/kg da and w₁ = 0.006 kg v/kg da. The air leaving the cooling tower at state 2 has h₂ = 105.9 kJ/kg da and w₂ = 0.026 kg v/kg da. The makeup water is supplied at 25°C and the mass flow rate of dry air is 58 kg da/s. What is the temperature of the warm water entering the tower? Express your answer in °C.
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