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प्रश्न
"A substance has a definite shape as well as a definite volume." Which physical state is represented by this statement?
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उत्तर
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संबंधित प्रश्न
Name the smallest particle from which matter is made up.
Write whether the following statement is true or false:
If the container in which a gas is collected has an opening, the gas will flow out and spread itself indefinitely
Describe simple experiments to prove that gases occupy space.
Write the states of water.
Particles in solids are free to move.
Choose the odd one:
The force of attraction between liquid particles is more than solid particles.
______ particles are tightly packed into a definite shape.
What is the physical state of water at 250°C.
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]
