A sealed 89-m³ tank is filled with 6000 moles of oxygen gas (O₂) at an initial temperature of 270 K. The gas is heated to a final temperature of 350 K. The ATOMIC mass of oxygen is 16.0 g/mol, and the ideal gas constant is R = 8.314 J/mol · K = 0.0821 L · atm/mol · K. The initial pressure of the gas is closest to

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Using the ideal gas law, $ PV = nRT $, we can calculate the initial pressure. Given $ n = 6000 $ moles, $ V = 89 $ m³ (or 89000 L), $ R = 0.0821 $ L·atm/mol·K, and $ T = 270 $ K, we find $ P = \frac{nRT}{V} \approx 1.48 $ atm. Converting to MPa (1 atm = 0.101325 MPa), the pressure is approximately 0.15 MPa.

A Sealed 89-M3 Tank Is Filled with 6000 Moles of Oxygen

A Sealed 89-M³ Tank Is Filled with 6000 Moles of Oxygen