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Pressure in a Tank Containing Warm Oxygen

What is the pressure (in atm) in a 10 liter tank containing 5 kg of oxygen at 300 degrees K? I think this requires the equation PV=nRT, but I can't seem to figure it out.

Solution Preview

Yes, you are correct. It involves the ideal gas law, PV=nRT.

What do you know?

V = 10 L

mass = 5 kg = 5000 g
Convert this to ...