AIPMT MAINS2012Chemistry-Gaseous State
AIPMT MAINS 2012 Chemistry Graham's Law of Effusion MCQ Question
Type: MCQ-numerical-Medium
A certain gas takes three times as long to effuse out as helium. Its molecular mass will be:
A
27 u
B
36 u
C
64 u
D
9 u
Correct Answer
Option B
Detailed Explanation
Using Graham's law of effusion, r ∝ 1/√M. If the gas takes three times as long, its rate is 1/3 that of helium. Solving 1/9 = 4/M gives M = 36 u.
Found an issue with this question?
Related Questions
More from Gaseous State
More from 2012
In which one of the following options the two examples are correctly matched with their particular type of immunity?
Human Health and DiseaseZoology
Which one of the following statements is correct with respect to immunity?
Human Health and DiseaseZoology
Which is correct order of solubility in water?
SolubilityChemistry