If a room has dimensions 3m×4m×5m what is the mass of air in the room if density of air at NTP is 1.3 kg
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Answer:
volume of cuboid= lbh
=3*4*5
=60 m³
mass = density* volume
= 78 kg
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volume of room
:3×4×5
60m
60m/1.3
46.15kg
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