If balloon is filled with dry air which contains mixture of 79% N 2 , and 21% O 2 at 25°C then which component of the air will effuse out first? (a) O 2 , because it has higher mass than N 2 (b) N 2 , because it has lower mass than O 2 (c) O 2 and N 2 both will effuse out at the same time (d) Whole air will effuse out and balloon will regain its original shape

Maharashtra State PSC 2013 Solved Paper

Question : 68 of 100

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If balloon is filled with dry air which contains mixture of 79% N₂, and 21% O₂ at 25°C then which component of the air will effuse out first?
(a) O₂, because it has higher mass than N₂
(b) N₂, because it has lower mass than O₂
(c) O₂ and N₂ both will effuse out at the same time
(d) Whole air will effuse out and balloon will regain its original shape

(a) and (b)
(c) and (d)
(a) only
(b) only

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