In normal psychrometric analysis at or below atmospheric pressure, both the air and the water vapor are treated as ideal gases. However, at high pressures, this assumption is no longer valid.
Determine the relative humidity (?) that results when 10.0 g of water are added to 1.00 kg of dry air at a total pressure of 10.0 MPa at 350.°C.
Assume Amagat's compressibility factor is valid here and compare your result with that obtained by assuming ideal gas behavior.