Temperature of nitrogen in a vessel of volume 2 m3 is 288 K. A U-tube manometer connected by the vessel shows a reading of 70 cm of mercury (level higher in the end open to atmosphere). The universal gas constant is 8314 J/kmol-K, atmospheric pressure is 1.01325 bar, acceleration due to gravity is 9.81 m/s2 and density of mercury is 13600 kg/m3. The mass of nitrogen (in kg) in the vessel is _______.

Temperature of nitrogen in a vessel of volume 2 m3 is 288 K. A U-tube

1.	Temperature of nitrogen in a vessel of volume 2 m³ is 288 K. A U-tube manometer connected by the vessel shows a reading of 70 cm of mercury (level higher in the end open to atmosphere). The universal gas constant is 8314 J/kmol-K, atmospheric pressure is 1.01325 bar, acceleration due to gravity is 9.81 m/s² and density of mercury is 13600 kg/m³. The mass of nitrogen (in kg) in the vessel is _______.
A.	4.55
B.	5.55
C.	4.65
D.	4.59
Answer» B. 5.55

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