Wet steam (a saturated liquid–vapour mixture of water) in a steam line at 1500 kPa is throttled to 50 kPa and 100 °C. Using h_{2} = 2682.4 kJ/kg at 50 kPa, 100 °C, and h_{f} = 844.55 kJ/kg, h_{fg} = 1946.4 kJ/kg at 1500 kPa, determine the quality of the steam in the line (dimensionless).