How can I derive polynomial functions that can predict the viscosities of pure liquid water in function of temperature at atmospheric pressure? I used experimental data from literature, but the equation that I derived by using Excel but after derived the equation when I putted the value of temperature (independent variable), it's not worked!
How did you do this with Excel? Did you fit a polynomial as a trend line, display the equation on the graph and use the coefficients? If so, change the number format of the coefficients to scientific notation with at least 6 decimal places.
Please see eq. 7 of J. Pátek, J. Hrubý, J. Klomfar, M. Součková, and A. H. Harvey, J. Phys. Chem. Ref. Data 38, 21, 2009. This is the result of a careful and critical examination of the literature data.
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