Problem 1: Humid air is enclosed in a 2.0OL flask at 40 Celsius. The flask is slowly cooled. When the temperature reaches 20 Celsius, drops of moisture become visible on the flask wall. Although the pressure in the flask changes when the temperature drops, it remains close enough to 1 atm for the psychrometric chart to provide a close interpretation of the behaviour of the system throughout the process. Use the chart to solve the following problems. a. What were the relative humidity, absolute humidity, and wet-bulb temperature of the air at 40 Celsius? b. Calculate the mass of the water in the flask.

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