CHEMISTRY CH10 Matter Around Us — Science STD 9 — Question
Tamilnadu BoardEnglish MediumSTD 9ScienceCHEMISTRY CH10 Matter Around Us1 Mark
Question
Define sublimation.
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Answer
Certain solid substances when heated change directly from solid to gaseous state without attaining liquid state. The vapours when cooled give back the solid substance. This process is known as sublimation.
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