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प्रश्न
On opening a box of camphor, its smell spreads all around. Why does this happen?
दीर्घउत्तर
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उत्तर
When we open a box of camphor, its smell spreads all around because camphor changes directly from a solid into a gas. The tiny camphor particles mix with the air and spread in all directions. This process is called sublimation. Thus, we can smell camphor even when we are some distance away from it.
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