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800 kgh of air at 105c is cooled by passing it through a counter flow heat exchanger find the exit temperature of air if water

800 kgh of air at 105c is cooled by passing it through a counter flow heat exchanger find the exit temperature of air if water enters at 15c and flows at a rate of 7500 kgh the heat exchanger has heat transfer equal to 20 m2 and the overall heat transfer coefficient corresponding to this area 145 wm2 c

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