Question

একটি ঘরের আয়তন ৭৬৮০০০ ঘন সে.মি. এবং বায়ু পানির তুলনায় ০.০০১২৯ গুণ
ভারী হলে, ঘরটিতে বায়ুর পরিমাণ কত কিলােগ্রাম?​

Answer 1

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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