Question

. What is the mass of air in a room of dimensions 4m x 3m x 3m when the density of air
is 1.3 kg/m​

Answer 1

Question:

If a room has dimensions 3m×4m×5m, what is the mass of air in the room if density of air at NTP is 1.3kgm-³?

Answer:

Given, volume of room

3m×4m×5m

=60m³

Density of air at NTP

=1.3kgm-³

Mass of air in the room

=volume×density

=60m³ ×1.3kgm-³

=78kg.

Answer 2

Answer:

hope this helps you :)

Explanation:

Given,  

       Volume of room = 3m × 4m × 5m

                                      = 60 m^3

       Density of air at NTP = 1.3 kg/m^3

      Mass of air in the room = volume × density  

                                            = 60 m^3 × 1.3 kg/m^3

                                           = 78 kg