q briefly explain about diffusion of


Q. Briefly explain about Diffusion of Gases?

Ans.

 The following are some important points on the diffusion of gases:

  • Gas molecules have an average kinetic energy (Ek) at a particular temperature as defined by this equation

    Ek = 1/2 mv2

(m is the mass of the gas molecule, and v is the average speed.)

  • Temperature is proportional to the kinetic energy. In fact temperature is actually a measure of kinetic energy.
  • Comparing the above equation for two different gases at the same temperature shows that the following relationship between the masses and velocities of the molecules:

    m2/m1 = v12/v22
  • This relationship is important to chemists when they want to separate different isotopes of gases.

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