The viscosity of carbon dioxide was measured by comparing its rate of flow through a long narrow tube (using Poisuille's formula) with that of argon....

The viscosity of carbon dioxide was measured by comparing its rate of flow through a long narrow tube (using Poisuille's formula) with that of argon. For the same pressure differential the same volume of carbon dioxide passed through the tube in 55 s as argon in 83 s. The viscosity of argon at 25 C is 208 uP; what is the viscosity of carbon dioxide? Estimate the molecular diameter (alpha) of carbon dioxide.