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A Given Volume Of Methane Diffuses In 20s. How Long Will It Take The Same Volume Of Sulphur (IV) Oxide To Diffuse Under The Same Conditions? [C = 12, H = 1, S = 32, O = 16 - Erudites Academy

A given volume of methane diffuses in 20s. How long will it take the same volume of sulphur (IV) oxide to diffuse under the same conditions? [C = 12, H = 1, S = 32, O = 16

A. 5s
B. 20s
C. 40s
D. 60s

Correct Answer:

Option C – 40s

Explanation

Relative molecular mass of CH4 = 12 X 1 + 4 = 16
Relative molecular mass of SO2 = 32 + 10 X 2 = 64
tSO2/tCH4 = √MSO2/MCH4
t/20 = √64/16 = √4
t/20 = 2
∴ t = 20 X 2 = 40sec