Question #288440

Oxygen (O2) gas is observed to diffuse through a capillary for 18 seconds. How long will it take for methane gas (CH4) to diffuse through the same orifice under identical conditions of temperature and pressure? (10 points)


Expert's answer

R2/R1 = M1/M2

M (O2) = 32 g/mol

M (CH4) = 16 g/mol

R2/18 = 32/16

R2(CH4) = 32/16 x 18 = 36 seconds


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