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Water viscosity table8/16/2023 The two empirical equations are compatible with each other to 0.09%. The less accurate equation covers the wider range −8 ☌? t?150 ☌ with the more limited accuracy of ☐.2%. The more accurate equation covers the range 0 ☌? t ?40 ☌ with an uncertainty of ☐.05%. The viscosity ratios have been correlated with the aid of two empirical equations. The coefficient of viscosity is the ratio of the shearing force to the fluids velocity gradient. Given the low molar mass of its constituent molecules, water has unusually large values of viscosity, surface tension, heat of vaporization, and entropy of vaporization, all of which can be ascribed to the extensive hydrogen bonding interactions present in liquid water. The ratios are used to generate absolute values with the aid of the standard NBS datum μ=1002.0 μPa s at 20 ☌. Viscosity of Water Every liquid has a unique viscosity, and the coefficient of viscosity is a measurement of this property. Standard values of the ratio of viscosity at a temperature T to its value at 20 ☌ have been derived from the re‐analyzed data because the uncertainty of this ratio is an order of magnitude smaller than that of the absolute values. Freezing point, density, specific heat and dynamic viscosity of Sodium Chloride and Water coolant. The latter are smaller than those embodied in the most recent International Formulation. The calculator below can be used to calculate the liquid water dynamic or kinematic viscosity at given temperatures. The new analysis eliminates possible systematic errors and permits the establishment of realistic error bounds for water in its role as a standard reference substance for viscosity. This is done in terms of a new, theoretically‐based equation for the operation of a capillary viscometer rather than in terms of semi‐empirical equations used by the original authors. Uncertainty calculation of dynamic viscosity,, for water at p 5 MPa. The table below compares the dynamic viscosity and kinematic viscosity of liquid water from 0 to its normal boiling point. The data shown yellow can be changes to recallate the selected variables. Keywords: Viscosity Density High pressure DEA (diethanolamine) TEA. The paper re‐analyzes the results of earlier, very precise measurements of the viscosity of water at essentially atmospheric pressure. The following table defines the average Kinematic Viscosity for selected liquid fluids.
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