Question

14. The rate of diffusion of
two gases A and B at
same volume are 8 and
12 sec respectively. If
molecular weight of gas
A is 81 g/mole, then
what will be the
molecular weight of
gas?
(a) 72.0 g mole-1
(b) 182.25 g mole-1
(c) 36.0 g mole-1
(d) 48.0 g mole-1​

Answer 1

Answer:

36.0 g mole -1 will be the weight of gas

360.0 g mole -1

Answer 2

Answer:

the answer is

r1/r2=root of m2/m1

8/12=root of x/81

square lhs and rhs

64/144=x/81

x=5182/144

x=36 g/Mol

therefore (c) 36 g/mol