Which of the following gases is expected to diffuse slower? a. ammonia gas b. sulfur hexafluoride gas c. carbon monoxide gas d. xenon gas e. hydrogen gas f. neon gas
Rate of effusion is inversely proportional to square root of molar mass
rate = k*sqrt(1/M)
M is molar mass
Rate of effusion is inversely proportional to square root of molar mass
rate = k*sqrt(1/M)
M is molar mass
the one with lower molar mass will have higher rate of effusions
Lets list out molar mass of all given compounds
Molar mass of NH3 = 17.034
Molar mass of SF6 = 146.07
Molar mass of CO = 28.01
Molar mass of Xe = 131.3
Molar mass of H2 = 2.016
Molar mass of Ne = 20.18
Increasing order of molar mass is:
H2
NH3
Ne
CO
Xe
SF6
Same is the order of decreasing rate
From fastest to slowest
H2
NH3
Ne
CO
Xe
SF6
Answer: SF6 is slowest
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