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Indicate if the following statements are true or false. Clearly justify each and

ID: 637121 • Letter: I

Question

Indicate if the following statements are true or false. Clearly justify each and every answer. a) Under fixed pressure the mean free path of a gas increases with temperature. () b) In a mixture of two gases, A and B, the collision frecuency of A against molecules of B, zAB is proportional to the molar fraction of gas A c) Knowing from the Kinetic Theory of gases that ? -(v>??, for two gases at the same temperature, the gas with the larger mass has the highest viscosity. d) Knowing from the Kinetic Theory of gases that D =-(v??, the diffusion constant is proportional to T1/2.

Explanation / Answer

The answers are:

a) True

b) True

c) True

d) False.

In case of d mean free path is proportional to T3/2