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प्रश्न
Why does the size of naphthalene balls decrease when left open?
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उत्तर
When naphthalene balls are left open, due to sublimation they change to vapours and their size decreases.
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संबंधित प्रश्न
Describe the process of sublimation with examples.
What do you mean by sublimation? Explain with an example.
Describe an experiment to demonstrate the process of sublimation.
What is sublimation?
Define sublimation.
‘Osmosis is a special kind of diffusion’. Comment.
Why does only iodine appear as violet vapours on heating?
How do weak intermolecular forces help sublimation?
Why is sublimation useful for separating iodine and sand?
“On heating, some solid substances change from solid to vapour state without passing through liquid state.” The technique used for the purification of such solid substances based on the above principle is known as:
