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Example 8.11 A research laboratory occupies a total volume of 1000 m3. An air-condition system supplies air to the laboratory at 22C with a relative humidity of 70%. The air in the laboratory has to be completely changed twice every hour. The outdoor air temperature is 10C. Calculate the volume of air required in every hour in the laboratory and the weight of water needed to maintain the specified humidity at 22 C. Also, calculate the heat required for the evaporation of water and humidification of the air in the laboratory. (Calculations in Industrial Chemistry: A Series of Solved Problems - Page 190) Note: Please I want a detailed solution to this question with the calculations to the end of the question The source of the question and the book have been added at the end of the