Final answer:
The mass of air in a typical house with a floor area of 150 m² and a ceiling height of 2.5 m is 450 kg. This is calculated by multiplying the volume of the house by the density of air. It would not be possible for a person to lift this mass if it were bags of rocks.
Step-by-step explanation:
The question is asking for the calculation of the mass of air in a typical house. To calculate this, you need to know the volume of the house and the density of air. A typical house may have a floor area of around 150 m² (1,600 square feet) with a floor-to-ceiling distance of 2.5 m. The volume of air inside the house is the product of these two measurements, which is 375 m³ (150 m² × 2.5 m). The density of air at room temperature (approximately 20°C) and sea level is about 1.2 kg/m³. Thus, the mass of the air can be calculated by multiplying the volume by the density, resulting in a mass of 450 kg (375 m³ × 1.2 kg/m³).
Considering the mass calculated, it is unrealistic for a person to lift this much mass if handed to them as bags of rocks since 450 kg is a significant weight, well beyond the capability of an average person to lift manually.