A portable air compressor has a 0.25 m² storage tank. The compressor is located outdoors where the ambient conditions are 40 °C, 95 kPa, and dewpoint of 25 °C. The compressor is ‘filled' where the final tank pressure is 800 kPa-gage (gage pressure) and the temperature is 40 °C. From this information determine:
a) The mass of atmospheric air in the tank (grams.),
b) the saturation pressure for any water vapor present in the tank,
c) the specific humidity in the tank,
d) the mass of any liquid water in the tank (grams).