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The volume and temperature of air (assumed to be an ideal gas) in a closed vessel is 2.87 m3 and 300 K, respectively. The gauge pressure indicated by a manometer fitted to the wall of the vessel is 0.5 bar. If the gas constant of air is R = 287 J/kgK and the atmospheric pressure is 1 bar, the mass of air (in kg) in the vessel is
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- 1.67
- 3.33
- 5.00
- 6.66
Correct Option: C
P = 1 + 0.5 = 1.5 bar
Pv = MRT; M= | RT |
M= | = 5 kg | 287 × 300 |