The volume of a room is 768000 cubic centimetre and air is 0.00129 times heavier than water. What will be the amount of air in that room in kg??
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Given : The volume of a room is 768000 cubic centimetre and air is 0.00129 times heavier than water
To Find : What will be the amount of air in that room in kg??
Solution:
Density of water = 1 gm/cm³
air is 0.00129 times heavier than water.
Density of air = 0.00129 gm/cm³
= 1.29 * 10⁻³ gm/cm³
Volume of room = 768000 cm³
= 768 x 10³ cm³
Density = Mass / Volume
Mass = Density x Volume
=> Mass = 1.29 * 10⁻³ * 768 x 10³
= 768 * 1.29
= 990.72 g
= 0.99072 kg
= 0.991 kg
amount of air in that room in kg = 0.991 kg
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