Question

The dimensions of a classroom are 7.5 mx 6 m
x 4 m. If the density of air at normal atmo-
spheric pressure is 1-293 kg/m”, the mass of
air present in the room is nearly-​

Answer 1

Answer:

232.74g

Explanation:

volume of room =lbh

= 7.5 x 6 x 4

= 180m³

density of air=1.293 kg/m³

density =mass /volume

mass= volume x density

= 180 x 1.293

= 232.74g