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Matter in Our Surroundings — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings1 Mark
Question
Bromine particles are almost twice as heavy as chlorine particles. Which gas will diffuse faster; bromine (vapour) or chorine? Explain your answer.
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Answer

Chlorine particles will diffuse faster than bromine particles. This is because lighter molecules diffuse faster than heavier molecules.

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