26. Moist air at 105 kPa, 30C and 80% relative humidity flows over a cooling coil in an insulated air- conditioning duct. Saturated air exits the duct at 100 kPa and 15C. The saturation pressure of water at 30C and 15C are 4.24 kPa and 1.7 kPa respectively. Molecular weight of water is 18 g/mol and that of air is 28.94 g/mol. The mass of water condensing out from the duct is g/kg of dry air (round off to the nearest integer).