Advertisements
Advertisements
प्रश्न
Describe simple experiments to prove that gases occupy space.
Advertisements
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
What are fluids? Give two examples
Fill in the blanks:
The physical state of a substance, which has neither fixed volume nor fixed shape is a ______.
Write the states of water.
______ soil is suitable for growing cotton.
Complete the given analogy.
Large Inter-particle space: Gas:: ______ :solid.
Complete the given analogy.
Solid: Definite shape:: ______: Shape of the vessel.
A rubber ball changes its shape on pressing. Can it be called a solid?
Distinguish the properties of solid, liquid, and gas. Draw a suitable diagram.
A strong current of trivalent gaseous boron passed through a silicon crystal decreases the density of the crystal due to part replacement of silicon by boron and due to interstitial vacancies created by missing Si atoms. In one such experiment, one gram of silicon is taken and the boron atoms are found to be 1000 ppm by weight, when the density of the Si crystal decreases by 12%. The percentage of missing vacancies due to silicon, which are filled up by boron atoms will be ____ g. [Given · Atomic wt. Si= 30, B = 11]
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]
