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प्रश्न
Comment upon the following:-
fluidity
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उत्तर
Fluidity is the ability to flow.
संबंधित प्रश्न
The mass per unit volume of a substance is called density.
(density = mass/volume).
Arrange the following in order of increasing density-
air, exhaust from chimneys, honey, water, chalk, cotton and iron.
Give reasons:
A gas fills completely the vessel in which it is kept.
Give a reason for the following observation.
Naphthalene balls disappear with time without leaving any solid.
If the fish is being fried in a neighbouring home, we can smell it sitting in our own home. Name the process which brings this smell to us.
Which of the following diffuses fastest and which the slowest?
Solid, Liquid, Gas Give reasons for your answer.
Why do gases diffuse very fast?
Why does a gas fill a vessel completely?
______ is not affected by gravity.
Comment upon the following:-
filling a gas container
A gaseous mixture of He and O2 is found to have a density of 0.518 gL-1 at 25° C and 720 torr. The mass percent of helium in this mixture is ______.
