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The oxygen contained in a steel cylinder is 8kg / m3. If a quarter of it is used in one welding, what is the density of the remaining oxygen in the cylinder Kilogram per cubic meter? Isn't density a property of matter? Why not 8?
Gas density is not fixed, and pressure and temperature
Gas can reach the maximum space it can reach, that is, the volume of gas is as large as the container
The remaining oxygen density is 6 kg / m3
A steel cylinder with a volume of 0.5m3 contains oxygen with a density of 6kg / m3. If one third of oxygen is used in an electric welding, what is the mass of residual oxygen in the cylinder? What is the density of residual oxygen?
2kg
4kg/m^3
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