QUESTION 1 (15 Marks)
A vessel of volume 1.5 m³ holds ethylene vapour at 220°C, which has a mass of 10 kg.
(a) Calculate the pressure (in bars) using a suitable generalized correlation and compressibility factor Z. (10 Marks)
(b) How much pressure measurement error can be expected compared to using the ideal gas law and why? (5 Marks)
