Unlike liquids, gas viscosity with temperature. Perry’s frequently cites Sutherland's Formula for these predictions:
For wide-range calculations, Perry’s uses empirical correlation equations.
Thousands of organic and inorganic compounds are listed with experimental viscosity values at specific temperatures. Perry's Handbook Viscosity
If you've spent any time in a chemical engineering lab or plant, you’ve likely encountered . Often called "the ChE Bible," its Section 2 is the go-to for physical property data, specifically viscosity . Why Engineers Use Perry’s for Viscosity
μ=μ0(0.555T0+C0.555T+C)(TT0)1.5mu equals mu sub 0 open paren the fraction with numerator 0.555 cap T sub 0 plus cap C and denominator 0.555 cap T plus cap C end-fraction close paren open paren the fraction with numerator cap T and denominator cap T sub 0 end-fraction close paren to the 1.5 power : Viscosity at temperature (Rankine). : Sutherland's constant for the specific gas. Finding the Data in the 9th Edition Go to product viewer dialog for this item. Perry's Chemical Engineers' Handbook, 9th Edition [eBook] Unlike liquids, gas viscosity with temperature
Liquid viscosity drops sharply as temperature rises. Perry’s often utilizes a variation of the :
Quick-reference charts where you draw a line between temperature and a substance point to read the viscosity. The Go-To Equations If you've spent any time in a chemical
While simple fluids use standard definitions , Perry’s relies on specific models for temperature dependence: For Liquids