Question

When r, P and M represent rate of diffusion, pressure and molecular mass, respectively, then the ratio of the rates of diffusion $(r_A/r_B)$ of two gases A and B, is given as :
(a) $(P_A/P_B)(M_B/M_A)^{1/2}$
(b) $(P_A/P_B)^{1/2}(M_B/M_A)$
(c) $(P_A/P_B)(M_A/M_B)^{1/2}$
(d) $(P_A/P_B)^{1/2}(M_A/M_B)$

Answer 1

the brain answer to this question is

c