A gas X diffuses twice as fast as gas Y. if the relative molecular mass of X is 32, calculate the relative molecular mass of Y.
-
A.
128 -
B.
8 -
C.
16 -
D.
64
Correct Answer: Option A
Explanation
(frac{RY}{RX}) = (frac{sqrt{My}}{sqrt{My}}) 1/2 = (frac{sqrt{32}}{sqrt{y}}) (frac{32}{y}) = 1/4
Y = (frac{32×4}{1}) = 128
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