Question

A tank contains 5 m3 of hydrogen at 400K is evacuated from atmospheric pressure to a...

A tank contains 5 m3 of hydrogen at 400K is evacuated from atmospheric pressure to a final pressure of 2.5 kPa. Determine

(a) The mass of hydrogen remains in the tank.

(b) The mass of hydrogen pumped out.

(c) Pressure of the remaining hydrogen if the temperature is reduced to 10oC

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Answer #1

As Fritially in tank, Mitrogen V=5 m3 Iz 400K f = 101325 Pa Ided Gas laws n PU 101325 Pal. 5m3 RT 8.314 faint melle x 4ook n=4.2.65 kg eractuated till P=2.5Kraj at P=2.5 kPa nf= PV 2.5X103 Pal. 5 (m3) RT 8.314 pa.mx 400k mulik int ne = 3.758 mol of n283 K 3.758 (md) x 8314 lgim3 SAS) (onclik P = 1.768 K Pa

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