The viscosity of a gas is to be determined by measuring the flow rate and pressure drop through a capillary tube. The experimental variables which are measured are:
Derive an expression for the percent uncertainty in the viscosity measurement in terms of the uncertainties in these five primary measurements. In view of the information in Chaps. 5 to 8, discuss the relative influence of each of the measurements, i.e., which primary measurement will probably have the most effect on the final estimated uncertainty in the viscosity.