The density of air is 1.3 kg/m³. The air in a room 5 m long, 4 m wide, and 2.5 m high has a mass of A) 0.26 kg. B) 6.5 kg. C) 38 kg. D) 65 kg.

Name: The density of air is 1.3 kg/m 3 . The air in a room 5 m long, 4 m wide, and 2.5 m high has a mass of A) 0.26 kg. B) 6.5 kg. C) 38 kg. D) 65 kg.
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Question

Quizplus · Accepted Answer

The volume of the room is 5 m * 4 m * 2.5 m = 50 m³. The mass of the air is density * volume = 1.3 kg/m³ * 50 m³ = 65 kg.

The Density of Air Is 1