Answers

2014-03-02T16:54:54+05:30
Let the speed of diffusion of N2 be x, so speed of gas is x/4.
according to grahams law x=1/√28 therefore x/4 =1/√28*16.
so molecular mass of gas = 28*16 =448
0
2014-03-04T00:34:33+05:30
The required relation is (r1 / r2) = (m1 / m2) ^ (1/2). Now put r1 = r1, r2 = ( r1 / 4) , m2 = m2 , m1 = 28 . The answer is 28*16 = 448.

0