Calculate the mass of air in a room of dimensions 4.5 m x 3.5 m x 2.5 m if the density of air at N.T.P. is `1.3 "kgm"^(-3)`

Explanation

To calculate the mass of air in a room with given dimensions and density, follow these steps:

### Step 1: Calculate the Volume of the Room
The volume \( V \) of a rectangular room can be calculated using the formula:
\[ V = \text{length} \times \text{width} \times \text{height} \]
Given the dimensions of the room:
...