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According to Graham’s law, at a given temperature the ratio of the rates of diffusion r_A/r_B of gases A and B is given by (where, p and M are pressures and molecular weights of gases a and B respectively) a. (P_A/P_B ) (M_A/M_B )^(1/2) b. (M_A/M_B ) (P_A/P_B )^(1/2) c. (P_A/P_B ) (M_B/M_A )^(1/2) d. (M_A/M_B ) (P_B/P_A )^(1/2)

According to Graham’s law, at a given temperature the ratio of the rates of diffusion r_A/r_B of gases A and B is given by
(where, p and M are pressures and molecular weights of gases a and B respectively)
a. (P_A/P_B ) (M_A/M_B )^(1/2)
b. (M_A/M_B ) (P_A/P_B )^(1/2)
c. (P_A/P_B ) (M_B/M_A )^(1/2)
d. (M_A/M_B ) (P_B/P_A )^(1/2)

Grade:10

1 Answers

Deepak Patra
askIITians Faculty 471 Points
9 years ago
Sol. Rate of effusion ∝ pi; pi = partial pressure of ith component ∝ √(1/M)

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