Chapter 10, Problem 2P

To determine

To Find: The mass of the air.

Answer to Problem 2P

The mass of the air in living room is $65.88\text{ kg}$ .

Explanation of Solution

Given info:

Volume, $V=4.8\text{ m}\times 3.8\text{ m}\times 2.8\text{ m = }51.072{\text{ m}}^{\text{3}}$ .

Density of air, $\rho =1.29{\text{ kg / m}}^{\text{3}}$ .

Formula used:

Expression of density and mass:

  $\begin{array}{l}\rho \text{ = }\frac{\text{Mass}}{\text{Volume}}\text{ = }\frac{m}{V}\\ m=\rho \times V\end{array}$

Calculation:

Substitute the given values in the above equation,

  $\text{Mass }m=\rho \times V=51.072\times 1.29=65.88\text{ kg}$

Conclusion:

Thus, the mass of the air in living room is $65.88\text{ kg}$ .