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प्रश्न
The molecules in a substance are in motion. What type of path do they follow?
उत्तर
The particles in a substance are not at rest (in motion), and they move randomly in all possible directions in a zig-zag Path
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संबंधित प्रश्न
For the following statements, say whether it describes a solid, a liquid or a gas.
Particles are far apart and move in all directions
A substance which can change its state
One litre of water has 6.02 × 1026 molecules. Estimate the size of a molecule.
State the approximate spacing between two molecules of a matter.
What are fluids? Give two examples.
Write whether the following statement is true or false.
A gas has no free surface.
Multiple choice question.
A substance which can change its state
Give a reason for the following:
An empty tumbler lowered into a glass beaker containing water, on tilting shows bubbles of air coming out, but when not tilted, no bubbles are seen.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
