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Gaseous State and Properties

What is the m...

Question

What is the mass of air in a room measuring 10 m × 6 m × 5 m if the density of air is 1.3 kg/cm³?

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Solution

Volume of the air in the room = Volume of the room
= 10 m × 6 m × 5 m
= 300 m³
Density of the air = 1.3 kg/cm³
Mass of the air = Density × Volume
= 1.3 kg/cm³ × 300 m³
= 1.3 kg/cm³ × 300 × 1000000 cm³
= 390000000 kg

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