Question

VI. Numericals:
1. What is the mass of air in a room measuring 10 x 5 x 2 m, if the density of air is 1.3 kg m-³
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Answer 1

Step-by-step explanation:

$mass = volume \times density \\ = (10 \times 5 \times 2 ) {(m)}^{3} \times1.3 kg {(m)}^{ - 3} \\ = 100 \times 1.3 \: kg \\ = 130 \: kg$

Answer 2

Mass = Volume × Density

= ( 10 × 5 × 2 )m³ × 1.3 kg m-³

= 100 × 1.3 kg

= 130 kg