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14-03-2024
Chemistry

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Rank the following gases O₂, CH₄, Kr, N₂O, SF₆ from highest to lowest root-mean-square speed at 290 K.
a) SF₆ > Kr > O₂ > N₂O > CH₄
b) O₂ > N₂O > CH₄ > Kr > SF₆
c) SF₆ > Kr > N₂O > CH₄ > O₂
d) Kr > SF₆ > N₂O > O₂ > CH₄

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