Description
This Gaseous Diffusion Coefficient
Apparatus is designed to measure
molecular diffusivity of gases.
This unit consists of:
• Precision bore glass capillary tube to contain
volatile liquid
• Thermostatic bath with transparent sides
• Horizontal glass tube for flow of bulk air
• Air pump
• Travelling microscope mounted on a scale
Experimental capabilities:
• Measurement of mass transfer rates and diffusion
coefficients
• Use of Fick’s Law to measure diffusion coefficients
• Effect of temperature
