Question

calculate the mean free path of a gas molecule if the molecular diameter is 5A and the number of molecule per unit volume of the gas is 2*10²⁴ per m³. Compare it with molecular diameter . Plz help me Scammers Stay away .​

Answer 1

Explanation:

d = 5Å = 5 x 10 ^ -10 m,

N/V = 2 x 10^ 24 per m³

(i) The mean free path,

λ = 1 / root 2 pi d² (N/V)

= (1.414) (3.142) (5 x 10 ^ -10 m)² (2 x 10 ^ 24 per m³)

= 10 ^ -4 / (1.414) (3.142) (25) (2) m

= 1000 × 10 ^ -7 / (1.414) (3.142) (50) m

= 4.502 x 10 ^ -7 m

= 4502 Å

(ii) λ / d = 4502 Å / 5 Å

= 900.4