What value of n would you recommend to use for the best possible accuracy in the evaluation of hg? Saturated water-Temperature table Sat.

Comment on your results and explain any unusual behavior.

This vector is an optional output from p,S,mu polyfit(x,y,n) that is used. Tabulate the maximum relative error observed as a function of n. star pyramid matlab MATLAB can plot a 1 x n vector versus an n x 1 vector. Compare your calculated values of hrg with those reported in the table and observe what happens as the degree of the polynomial n is increased. Here (dP/dT)sat is the slope of the vaporization line, T is absolute temperature (K C+ 273.15) and vrg is the difference in specific volume between saturated liquid and saturated vapor (Vrg V-v). Use polyfit to determine the power relationships for the data sets and graph the resulting trendlines along with the experimental data. Then apply the Clapeyron equation to calculate the enthalpy of vaporization hrg for each temperature listed in the table. 2) Use the Matlab function polyder to evaluate the derivative of the polynomial developed in part (1) for each of the temperatures listed in the table.

Vary n from a value of 1 to19 where the upper limit corresponds to the interpolating polynomial which passes through all the base points. Tabulate the maximum relative error observed as a function of n. Compare the saturation pressure as calculated by the polynomial with the data given in the table and observe what happens as the degree of the polynomial n is increased. The Matlab function polyval may be used to evaluate the polynomial at any point. Transcribed image text: 1) Use the Matlab function polyfit to curve fit the saturation pressure versus temperature data along the vaporization line for water in the table below with a polynomial of degree n.

Polyfit matlab