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प्रश्न
Describe simple experiments to prove that gases occupy space.
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उत्तर
occupy space
Experiment:
‘A’ – A glass beaker or bowl is half-filled with water.
‘B’ – An empty glass tumbler [which of course contains air] is inverted a lowered inside it.
‘C’ – On tilting the tumbler, the air is displaced and bubbles are seen coming out.
Conclusion: Air or gases occupy space.
संबंधित प्रश्न
Write whether the following statements are true or false:
Only water can exist in three different states
For the following statement, say whether it describes a solid, a liquid or a gas.
Particles are quite close together
The three main states of matter are solids, liquids, and gases. Compare the three states with reference to the following characteristics of matter
(a) volume
(b) shape
(c) compressibility
(d) diffusion.
Describe simple experiments to prove that liquids have no definite shape
Which of the following is a solid?
Particles in solids are free to move.
Strainer is a kind of sieve which is used to separate a liquid from solid.
Give two examples of diffusion.
What is the physical state of water at 250°C.
The density of solid Argon is 1.6 ml at - 233°C. If the Argon atom is assumed to be sphere of radius 1.5 × 10-8 cm, then the ______ % of solid Argon is apparently occupied.
[Take : NA = 6 × 1023, Atomic mass of Ar = 40]
