I'm having a hard time with this one. Please go through the steps with the values given. Much appreciated!

Humid air is enclosed in a 1.0-liter flask at 38C. The flask is slowly cooled. When the temperature reaches 14C, 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 representation of the behavior 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 38C? b. Calculate the mass of the water in the flask. C. Calculate the enthalpy change in Joules undergone by the air in going from 38C to 14C. d. Write an energy balance for this closed-system process, taking the wet air in the flask as the system, and use it to calculate the heat in joules that must be transferred from the air to accomplish the cooling. Assume ideal gas behavior for humid air