The density of air is 1.29 kg/m³. What is the mass of the air inside a room 4.0 m × 3.0 m × 2.0 m? A) 0.32 kg B) 3.1 kg C) 31 kg D) 1.9 kg E) 19 kg

Question

Quizplus · Accepted Answer

The volume of the room is 4.0 m × 3.0 m × 2.0 m = 24 m³. 
Using the formula: density = mass/volume, we can rearrange to solve for mass: mass = density × volume. 
mass = 1.29 kg/m³ × 24 m³ = 31 kg. 
Therefore, the mass of air inside the room is 31 kg. 
The best choice is C.

The Density of Air Is 1