An air flow of 2 kg/s at 30C, relative humidity 80%, is conditioned by taking half of

Question:

An air flow of 2 kg/s at 30◦C, relative humidity 80%, is conditioned by taking half of the air flow, cooling it, and mixing it with the other half. Assume the outlet flow should have a water content that is 75% of the original flow. Find the temperature to cool to, the rate of cooling, and the final exit flow temperature.