Question

10m^3 of air weigh 13 kg.

How much does the air weigh in a room 4.2m long, 3.5m wide, and 2.6m high?

Answer 1

The weigh of air in the room having volume 38.22 m³ is 49.68 kg

Explanation:

Given as :

Length of room = 4.2 m

Width of room = 3.5 m

Height of room = 2.6 m

So , volume of room = Length × Width × Height

Or, volume of room = 4.2 m × 3.5 m × 2.6 m

∴, volume of room = 38.22 m³

Now,

∵ 10 m³ of air weigh 13 kg

so, 1 m³ of air weigh =
`(13)/(10)` kg

∴ 38.22 m³ of air weigh =
`(13)/(10)` kg × 38.22 kg

I.e 38.22 m³ of air weigh = 49.68 kg

Hence The weigh of air in the room having volume 38.22 m³ is 49.68 kg Answer